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Sciatic hernia, a rare type of pelvic floor hernia, presents significant diagnostic and therapeutic challenges. We report the first totally extraperitoneal (TEP) repair of a sciatic hernia, which was performed in a 63-year-old woman who presented with vomiting and poor dietary intake. Computed tomography revealed a strangulated femoral hernia and an incidental herniation of the sigmoid colon through the right sciatic foramen. Simultaneous TEP repair of both hernias was successfully performed. The TEP approach offered a wide field of view without disturbing the abdominal organs and facilitated the management of concurrent hernias, making it particularly beneficial when the diagnosis of sciatic hernia is certain., (© 2024 Asia Endosurgery Task Force and Japan Society of Endoscopic Surgery and John Wiley & Sons Australia, Ltd.)

Paraduodenal hernias are rare internal hernias in which the small intestine becomes trapped behind the mesentery of the colon. These hernias can lead to bowel obstruction and ischaemia, making early diagnosis and intervention crucial. Patients often exhibit non-specific symptoms, highlighting the importance of using CT imaging for diagnosis. Prompt surgical correction is necessary to prevent severe complications such as bowel ischaemia or necrosis. While open and laparoscopic approaches are well-established, there is limited evidence on the robotic repair of paraduodenal hernias as a minimally invasive technique. This case report describes a man in his early 30s who presented with persistent abdominal pain and vomiting. Imaging revealed a right paraduodenal hernia with characteristic CT findings showing clustered jejunal loops and abnormal mesenteric rotation. The patient successfully underwent robotic hernia repair, which involved identifying and reducing the hernia sac and securing the defect with polypropylene sutures. The postoperative recovery was complication-free. This case underscores the effectiveness of robotic techniques in managing this rare presentation and emphasises the importance of timely diagnosis and intervention., Competing Interests: Competing interests: None declared., (© BMJ Publishing Group Limited 2024. No commercial re-use. See rights and permissions. Published by BMJ Group.)

Purpose: The purpose of this study is to systematically review the literature to evaluate the diagnostic methods, associated defects, treatment approaches, and outcomes of congenital perineal hernia., Methods & Results: We searched PubMed and Google Scholar from inception until January 7, 2024, to find relevant articles on congenital perineal hernia. A total of 87 articles were obtained which were screened based on eligibility criteria yielding a total of 12 documented cases that were summarized in a table., Case Description: We also present two cases of congenital perineal hernia in two siblings. A 28-day-old full-term infant presented with respiratory distress and pneumonia. Examination revealed a reducible swelling in the buttock. Imaging confirmed congenital diaphragmatic and perineal hernia. Emergency surgical correction of the diaphragmatic hernia was performed, but the infant's condition worsened, leading to death 9 days after surgery due to sepsis and respiratory arrest. A 2.5-month-old infant presented with protrusion in the buttocks, irritability, and breathing difficulties. Examination revealed a reducible congenital perineal hernia. Imaging revealed herniation of the intestinal loops through a pelvic muscle defect. Although surgery was offered, the parents chose conservative management, and the patient remained asymptomatic at 4 months of age., Conclusions: It is important to consider the possibility of congenital perineal hernia when encountering a reducible swelling in the buttock area. Our findings emphasize the need for individualized care based on case-specific attributes and highlight the complexity of congenital perineal hernias., Competing Interests: Declarations. Conflict of interest: The authors declare no conflict of interest. Patient consent: Informed consent was acquired from the patients’ guardians whose clinical images and case details are written in the study., (© 2024. The Author(s), under exclusive licence to Springer-Verlag France SAS, part of Springer Nature.)

Purpose: To report an adult case of cervical lung herniation involving the azygous lobe and to review the literature., Methods: A trauma patient was incidentally found to have a cervical lung herniation involving the azygous lobe. We reviewed the literature on cervical lung herniation, described techniques used to diagnose and evaluate cervical lung herniations and summarized management options., Results: Cervical lung herniation results in a defect in Sibson's fascia allowing the apical lung to protrude above the thoracic inlet. In the adult population, these are commonly seen after trauma or surgical intervention, but congenital forms have also been described in the pediatric population. Apical herniation of the lung can cause symptoms due to mass effect on the esophagus or trachea. We report an adult case of cervical lung herniation involving the azygous lobe., Conclusion: Cervical lung herniation is a relatively rare entity compared to lung herniation through the rib cage. Knowledge of this entity is essential to properly evaluate trauma patients and to diagnose patients who have symptoms of cough, dysphagia or a bulging neck mass., (© 2024. The Author(s), under exclusive licence to Springer-Verlag France SAS, part of Springer Nature.)

Study Design: Retrospective case series of 48 patients., Objectives: This study's primary objective was to provide a clinical description of a group of individuals with a working diagnosis of idiopathic spinal cord herniation (ISCH). The secondary objectives were to appreciate the natural history of these patients and describe their clinical evolution with conservative or surgical management., Setting: The study was carried out at l'Hôpital de l'Enfant-Jésus, CHU de Québec (Québec, Canada), a tertiary care university hospital., Methods: This case series study is based on routinely collected data. Forty-eight (48) cases were identified as having an ISCH on MR imaging, between 2009 and 2019. Their medical files have been searched retrospectively. Patient characteristics were described according to their asymptomatic or symptomatic status., Results: The mean age of patients at the time of diagnosis was 52.5 years. Most of the patients identified were asymptomatic (69%) and followed clinically. The main neurologic presentation for the symptomatic group was Brown-Séquard-like syndrome. 20% of the symptomatic patients were rapidly treated surgically after consultation with the neurosurgeon. The mean follow-up duration was 56 months for asymptomatic patients and 51 months for symptomatic patients. Most of our patients (41 out of 45) were considered stable or unchanged at follow-up. There was no neurological progression in all asymptomatic patients., Conclusions: Our study shows that ISCH and its variants are not always symptomatic and may be a fortuitous finding. As the natural history may be non-progressive, it is probably appropriate to treat some cases expectantly., (© 2024. The Author(s).)

BACKGROUND Muscle hernias are an uncommon condition typically found in the extremities; masseter muscle hernia is even rarer. However, it is important for clinicians and radiologists to be aware of this possibility. Intramuscular venous malformation (IMVM) is also uncommon and mostly found in the head, neck, and extremities. The simultaneous presence of both conditions is extraordinary uncommon, and, to our knowledge, this has not been reported before in the masseter muscle. Due to their rarity, vague presentation, and inaccurate clinical diagnosis, radiological evaluation is needed to avoid inappropriate surgical planning. CASE REPORT A 12-year-old boy had a long-standing focal left cheek swelling exacerbated by teeth clenching. Lateral X-ray revealed a round calcification over the left mandibular region. Ultrasonography indicated a bulky left masseter muscle with focal heterogeneous structure and 2 rounded calcified foci. During teeth clenching, ultrasonography detected focal muscular herniation through the left masseter muscle facia that reduced with rest. The patient was diagnosed with left masseteric muscle hernia coexistent with IMVM. Surgical excision of the IMVM was performed, and the hernia defect was repaired. Histopathology confirmed the diagnosis, and the patient was discharged without postoperative complications on short-term follow-up. CONCLUSIONS Despite their rarity, masseter hernias and IMVMs should be considered in the differential diagnosis of any masseter lesion, especially in children. We reported a very rare coexistence of both pathologies. Comprehensive diagnosis can be achieved through a combination of clinical examination, X-ray, and ultrasound assessments.

We investigated whether idiopathic spinal cord herniation is a congenital or acquired condition and undertook a study to determine the risk of developing iSCH in patients with persistent ventral spinal CSF leaks. De novo formation of iSCH was established among all 6 patients with iSCH who had undergone prior spinal imaging for symptoms unrelated to iSCH. Among 51 patients with persistent ventral spinal CSF leaks, iSCH developed in 2 patients (probability increased from 0% at 5 years to 9.4% at 10 years). This study shows that iSCH is an acquired condition, and early treatment of ventral CSF leaks offers a unique opportunity to prevent neurologic disability., (© 2024 by American Journal of Neuroradiology.)

Abstract: Gastrointestinal bleeding scintigraphy is a noninvasive study used to determine the presence of active bleeding, localize the bleeding site, and estimate the bleeding volume for prognostic purposes in patients with suspected gastrointestinal bleeding. However, it is important to note that false-positive results can occur due to various reasons. In this case, we present the scenario of a middle-aged woman who exhibited symptoms of gastrointestinal bleeding and underwent 99m Tc-RBC scintigraphy. The imaging revealed an accumulation of radiotracer in the hypogastric region, which was later determined to be caused by an omental hernia on SPECT/CT images. The herniated structure caused congestion in the mesenteric vessels, leading to the accumulation of 99m Tc-RBC. This case highlights the significance of considering anatomical anomalies and nonbleeding pathologies when interpreting the 99m Tc-RBC scintigraphy results for gastrointestinal bleeding., Competing Interests: Conflicts of interest and sources of funding: none declared., (Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.)

Competing Interests: The authors report no conflicts of interest.

The superior lumbar triangle is formed by the erector spinae muscles medially, internal oblique muscles laterally and the 12th rib superiorly. Herniation through this triangle can be congenital or acquired (primary or secondary). The contents of the hernial sac commonly include retroperitoneal fat, kidneys, ascending or descending colon, small intestines, stomach, spleen, etc. We present a case of an infant with congenital herniation of the left kidney through the superior lumbar triangle with an incidentally detected closed spinal tube defect. The anatomy of the lumbar triangle and a literature review of the associated hernia have been briefly described in this article., Competing Interests: Competing interests: None declared., (© BMJ Publishing Group Limited 2024. No commercial re-use. See rights and permissions. Published by BMJ.)

Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Sublingual gland herniation into the submandibular space through a mylohyoid muscle defect is a common anatomical variation; however, salivary gland cancers that arise from a herniated sublingual gland have not been described yet. Here, we report three patients with salivary gland cancers originating from a herniated sublingual gland. All tumors were detected as palpable submandibular masses, located anterior to the submandibular gland, medial to the mandible, and lateral to the mylohyoid muscle, with contact with the sublingual gland through a mylohyoid muscle defect. Intraoperative findings confirmed that the masses were derived from herniated sublingual glands. Pathological examination showed one case of mucoepidermoid carcinoma and two cases of adenoid cystic carcinoma. Imaging findings of the tumor location, in addition to the continuity with the sublingual gland through the mylohyoid muscle defect, are crucial for accurately diagnosing the tumor origin, which is essential for determining the appropriate clinical management., (© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)

Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Spontaneous herniation of the temporomandibular joint (TMJ) into the external auditory canal (EAC) is a rare occurrence. Typically, TMJ herniations are small and involve a focal defect in the EAC. In this report, we present an unusual case of extensive TMJ herniation measuring 17 mm, originating from a bony defect in the EAC. The patient underwent a successful treatment, which involved the surgical excision of the herniated mass and the subsequent reconstruction of the EAC using conchal cartilage. In this article, we will discuss the surgical techniques employed for repairing TMJ herniation in the EAC., Competing Interests: The authors report no conflicts of interest., (Copyright © 2024 by Mutaz B. Habal, MD.)

Paraduodenal Hernia (PDH) is an extremely rare cause of bowel obstruction. The true incidence of pediatric PDH is unknown since there are very few published cases of this phenomenon. PDH carries a high morbidity and mortality rate if unidentified. Proper diagnosis and prompt surgical intervention are extremely important. Our case is of a healthy 3-year-old male who presented with six days of generalized abdominal pain associated with constipation, anorexia, insomnia, and non-bloody, non-bilious emesis. Abdominal ultrasound (US) was negative for intussusception and failed to visualize the appendix. Abdominal x-ray (AXR) showed nonspecific distention of several loops of bowel with air-fluid levels. Computerized tomography (CT) scan was concerning for an internal hernia versus possible transverse colonic volvulus. The patient's abdominal pain and distension worsened after nasogastric (NG) tube placement. With the combination of physical and imaging findings, the patient underwent diagnostic laparoscopy. Intraoperatively, severely dilated bowel was encountered, which was decompressed via the appendix. After which, we discovered a PDH on the left side of the ligament of Treitz which was successfully reduced. The patient had no complications and continues tolerating a regular diet with return of normal bowel function. Our case describes successful laparoscopic surgical reduction of a pediatric left paraduodenal hernia.

Purpose: Sigmoidocele, which is a type of obstructed defecation syndrome (ODS), is a peritoneal hernia of the pelvic floor that has been seldom studied individually. This study investigated the anatomic characteristics of sigmoidocele based on imaging features., Methods: This retrospective cohort population comprised adult patients with ODS who underwent defecography between December 2017 and July 2020. Sigmoidocele was classified based on existing criteria. Novel radiological parameters including the vertical distance descended by the sigmoid colon from rest to maximum straining (RMS) and from the inferior border of the sigmoid colon to the superior border of the rectum at maximum straining (MSR) were measured., Results: Among 275 patients with sigmoidocele, 251 (91.6%) were female. The mean age was 51.53±12.99 years. We classified 26, 205, and 44 cases as grades I, II, and III, respectively. Patients with more severe sigmoidocele had greater sigmoid colon mobility (RMS: 19.13±8.54 mm, 34.45±14.51 mm, and 48.70±20.05 mm for grades I, II, and III, respectively; p < 0.001) and more pronounced compression of the rectum by the sigmoid colon at maximum straining (MSR: 35.23±8.44 mm, 26.33±13.29 mm, and 15.18±18.00 mm, respectively; p < 0.001). We regrouped the patients based on sigmoid colon alignment. Type L patients had the most severe constipation., Conclusion: Our study presents a novel sigmoidocele classification. The anatomic appearance and location of the herniated sigmoid colon observed using fluoroscopy during defecation may help improve the clinical awareness of ODS caused by sigmoidocele., (© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)

Introduction: Paraduodenal hernias (PDH) are rare congenital internal hernias with non- specific symptoms. Left-sided paraduodenal hernia is three times more common than right-sided paraduodenal hernia with similar clinical presentation but different embryological origins., Materials and Methods: We report a series of eight cases of paraduodenal hernia who presented with varied clinical presentation ranging from vague abdominal pain to complete intestinal obstruction. Six cases had left-sided paraduodenal hernia, while two cases had right-sided paraduodenal hernia., Results: Seven cases based on their presentation underwent surgery either electively or on emergent basis. Three cases underwent laparoscopic repair. One case had a recurrence and was re-operated four months later. There was no mortality among any of the cases., Conclusion: A pre-operative diagnosis of paraduodenal hernia is essential. Laparoscopic surgery is safe in select cases and is found to be beneficial., (© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)

Background: Herniation of the temporomandibular joint (TMJ) into the external auditory canal (EAC) due to a bony defect in the EAC is rare. Such bony defects can be secondary to inflammation, neoplasm, trauma. In rare instances, TMJ herniation can occur when the Huschke foramen is constantly exposed. TMJ herniation can induce clicking tinnitus, otalgia, conductive hearing loss, and otorrhea, but can also present with no symptoms. This study reports a case of TMJ herniation., Clinical Presentation: A male patient presented with clicking tinnitus that had developed 3 years ago. Dome-shaped soft tissue was found on the anterior EAC wall, which protruded and depressed with mouth movement. The patient underwent surgical reconstruction of the bony defect with titanium mesh, and the symptoms resolved after surgery., Conclusion: This case highlights the importance of surgical reconstruction of a bony defect in the EAC using appropriate materials.

An internal hernia through the foramen of Winslow represents a rare surgical pathology. This report describes a case with incipient caecal ischaemia and discusses current diagnostic and therapeutic approaches. A patient in his early 60s presented at the emergency department with abdominal pain and last bowel movement three days prior. A CT scan of the abdomen suggested an internal hernia into the lesser sac. Intraoperatively, the suspected diagnosis could be confirmed laparoscopically with a twisted mobile caecum herniating through the foramen of Winslow. Due to a suspected ischaemia and laparoscopic frustrated reduction, a right open hemicolectomy was performed. The hernia gap was closed. The postoperative course was uneventful. Despite the rarity of internal hernias in patients without prior abdominal surgery, surgeons should be aware of this entity. The diagnosis can be difficult and sometimes only established intraoperatively. Open surgery is usually required. If the gap is clearly identified, the recommendations tend towards its closure., Competing Interests: Competing interests: None declared., (© BMJ Publishing Group Limited 2023. No commercial re-use. See rights and permissions. Published by BMJ.)

Intercostal herniation is an abnormal protrusion of lung tissue through the boundaries of the thoracic cavity. It is commonly seen after chest trauma or thoracic surgery but rarely occurs spontaneously. We report a male patient who presented with an intercostal herniation after vigorous coughing for over 2 weeks. Treatment of post-coughing intercostal hernias is either conservative management or surgical intervention, which is dictated by the signs, symptoms, site, and presence of strangulation., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Background: This study aimed to investigate the diagnosis and treatment of thoracic anterior spinal cord herniation, a rare condition., Methods: Clinical data of 7 patients diagnosed with thoracic anterior spinal cord herniation were analyzed. All patients were diagnosed with a complete preoperative examination and scheduled for surgical treatment. In addition, regular follow-up was performed after the surgery, and the operation's efficacy was evaluated according to clinical symptoms, imaging findings, and improvement in neurologic function., Results: All patients underwent spinal cord release with an anterior dural patch. Notably, no severe postoperative surgical complications were observed. All patients were followed up for 12-75 months, with an average duration of approximately 46.5 months. Post-operative pain symptoms were controlled, neurological dysfunction and related symptoms improved to varying degrees, and anterior spinal cord herniation did not recur. The modified Japanese Orthopedic Association score at the last follow-up was significantly higher than the preoperative score., Conclusions: Clinicians should avoid misdiagnosing patients with thoracic anterior spinal cord herniation with intervertebral disc herniation, arachnoid cysts, and other related diseases, and patients should undergo surgical treatment as early as possible. In addition, surgical treatment can protect the neurologic function of patients and effectively prevent the aggravation of clinical symptoms., (Copyright © 2023. Published by Elsevier Inc.)

Sciatic hernia is a rare type of pelvic floor hernia. The herniated tissue can include the ureter, small and large bowel, and ovary, among other tissues. Only a few cases of laparoscopic treatment for a sciatic hernia with small-bowel incarceration have been reported. We report our experience using a laparoscopic approach for treatment of sciatic hernia in an 83-year-old woman and review the literature on sciatic hernias. The patient was referred to our hospital complaining of constipation and abdominal bloating. Computed tomography (CT) scanning showed a right sciatic hernia containing the small bowel. Laparoscopic repair of the sciatic hernia was performed using a self-fixating mesh. The patient was discharged after an uneventful postoperative course and has not developed abdominal bloating or constipation postoperatively. In conclusion, a sciatic hernia was successfully repaired using a laparoscopic trans-preperitoneal approach and ProGrip Self-Fixating Mesh.

Acquired lung hernias typically result from trauma or intra-thoracic surgery is defined as the protrusion of lung parenchyma beyond the anatomic boundaries of the thoracic wall. A 40-year-old woman underwent deep inferior epigastric perforator (DIEP) breast reconstruction following her mastectomies. Post-operatively, she returned to the emergency department with severe chest pain, shortness of breath, and localized chest swelling. CT angiography demonstrated intercostal right lung hernia with concern for incarceration. She returned emergently to the operating room. The lung was reduced, but the flap was ultimately determined to be nonviable and was removed. Post-operative course was uneventful and the patient recovered well. Intercostal lung hernia is an uncommon clinical entity that has not previously been described as a complication of DIEP breast reconstruction. Its development is associated with significant morbidity including flap loss in this case. Early recognition of this rare complication is essential to avoid more severe sequelae of tissue ischemia.

Paraduodenal hernia is a rare form of congenital internal hernia and can lead to small bowel obstruction. This case report describes the case of a young boy who was admitted with acute exacerbation of chronic abdominal pain.

A paraduodenal hernia is a rare type of hernia, however it is the most common type of internal hernias. It can develop after surgery, trauma, or be congenital. Paraduodenal hernias are rare in children. Clinical presentation is nonspecific. Patients range from being asymptomatic to presenting with clinical symptoms associated with small bowel obstructions. Diagnostic tools such as X-ray, plain abdominal radiography, and computed tomography may be used to diagnose paraduodenal hernias. Described is the case of a 5-year-old female who died suddenly of a bowel obstruction due to a paraduodenal hernia found at postmortem examination. In the hours prior to death, she reported stomach pain, vomiting, and later developed a fever. Postmortem CT study showed free fluid in the abdomen and bowel distention. Internal examination showed an obstructed bowel with ischemic sections extending from the distal portions of the small bowel up to the proximal portions of the transverse colon. The ischemic portions were entrapped within a clear membranous sac within the abdominal cavity. The sac was concluded to be a paraduodenal hernia. Paraduodenal hernias are rare and difficult to diagnose but they must be considered in the diagnostic process, as without surgical intervention the mortality rate can be high.

An approximately 2-day-old neonate was brought with a fleshy intraoral mass and an inability to suckle adequately, without a preceding history of trauma. Contrast-enhanced CT revealed a fat density mass-like lesion occupying and partially filling the oral cavity. Following detection of a defect in the buccinator muscle with associated herniation of the buccal pad of fat into the mouth, a surgical approach was adopted to tackle the condition. Intraoperatively, the defects in the buccinator muscle and buccal mucosa were repaired after excision of the prolapsed fat pad. Age-appropriate feeding practices were initiated following surgery without residual anatomical or functional limitation. Early radiological diagnosis directing surgical intervention was helpful in management of a benign but functionally impeding lesion., Competing Interests: Competing interests: None declared., (© BMJ Publishing Group Limited 2023. No commercial re-use. See rights and permissions. Published by BMJ.)

A 51 years old male had underwent aortic valve replacement (AVR) by minimally invasive cardiac surgery (MICS) for aortic regurgitation. About one year after the surgery, bulging of the wound and pain appeared. His chest computed tomography showed an image of the right upper lobe protruding from the thoracic cavity through the right second intercostal space, and the patient was diagnosed as having an intercostal lung hernia and the surgical treatment was performed using a unsintered hydroxyapatite and poly-L-lactide (u-HA/PLLA) mesh plate and monofilament polypropylene (PP) mesh. Postoperative course was uneventful without any evidence of recurrence.

Internal hernias are protrusions of viscera that can cause obstructions such as small bowel obstruction (SBO). Diagnosis can be challenging, as they usually come with an atypical presentation. We report on a case of a woman in her early 40s, with no history of surgery or chronic illnesses, which came with abdominal pain associated with vomiting. CT scan revealed obstructed small bowel. On exploratory laparoscopy, an internal hernia through a peritoneal defect in the vesicouterine space was found, entrapping a limb of the jejunum. The entrapped loop of the small bowel was freed, the ischaemic part was resected, and the defect was closed. Our case presents the second reported case of a congenital vesicouterine defect causing SBO. It is important to consider patients presenting with SBO as a case of congenital peritoneal defect if they had no previous surgeries., Competing Interests: Competing interests: None declared., (© BMJ Publishing Group Limited 2023. No commercial re-use. See rights and permissions. Published by BMJ.)

Introduction: Left paraduodenal hernia is an internal herniation that develops due to anomalous fetal development. If incarcerated, it becomes an unusual cause of acute abdomen., Case Report: This case report presents an uncommon case of a 39-year-old man with acute abdominal pain with vomiting. The patients medical history included recurrent subileous events and Crohn´s disease in long-term remission. CT scan of abdominal cavity indicated a possible mechanical obstruction of small bowel loops in the upper left abdominal quadrant. Incarcerated left paraduodenal herniation was identified during surgery. Repositioned small bowel loops did not require resection and the entrance of Landzert´s fossa was sutured., Conclusion: Left paraduodenal hernia is the most common congenital internal herniation. Although rare, it should be considered in the differential diagnosis of acute abdomen.

Background: Lung herniation is a rare condition, most often due to thoracic injury, but has also been described as a complication following cardiothoracic surgery. Here, we report two cases of post-surgical lung herniation following a neurosurgical mini-transthoracic (mini-TTA) for treatment of thoracic herniated discs. With this report we aim to make surgeons aware of this rare complication, review existing literature on surgical repairs and describe our novel correction technique using video assisted thoracic surgery (VATS) and a combination of mesh covering the muscle defect internally and nitinol rib plates for rib approximation on the outside of the thoracic cavity., Case Description: Patient A was an 85-year-old man who presented with a subcutaneous swelling at the site of surgery following a left sided mini-TTA. Computed tomography (CT) revealed pulmonary tissue herniation. He underwent VATS guided reconstruction. Using two Ventralex meshes covering the defect on the inside and a NiTi-rib H-plate for rib approximation. Patient B was a 73-year-old woman who developed pulmonary complaints with a soft mass at the surgery site after a left sided mini-TTA. She also underwent VATS guided reconstruction. A large Sempramesh composite mesh and two NiTi-Rib H-plates were used. Recovery was uncomplicated and follow-up revealed no recurrence in both cases., Conclusion: These cases should make surgeons aware of the possibility of post-surgical development of lung herniation and describe successful correction using a combination of mesh material and NiTi-Rib H-plates through a VATS technique., (© 2022. The Author(s).)

A 50-year-old man was referred to our hospital with myelitis associated with a 10-months history of progressive muscle weakness in the left leg. Neurological examinations demonstrated diffuse muscle weakness of the left leg, touch hypoesthesia of the right leg, reduced pain sensation below the right nipple, left pyramidal sign, and urinary incontinence. On the basis of thoracic spinal MRI and thoracic CT myelography, revealing anterior displacement of the spinal cord and enlargement of the posterior subarachnoid space at the Th4 vertebral level, we diagnosed the patient as having idiopathic spinal cord herniation with incomplete Brown-Séquard syndrome. After microsurgical release of the spinal cord and subsequent covering of the anterior dural defect with an artificial dura mater, the symptoms improved without progression. Clinicians should consider spinal cord herniation as a cause of slowly progressive thoracic myelopathy with Brown-Séquard syndrome.