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Introduction: Intussusception is the telescoping of one segment of the intestine into an adjacent segment, leading to obstruction, inflammation, and ischemia. In adults, it accounts for 5% of intussusception cases, representing 1%-5% of intestinal obstructions. It is typically secondary to intraluminal lesions (benign or malignant) or iatrogenic factors. Case Report: A 39-year-old male patient with a history of chronic gastritis presented with a three-month history of intermittent epigastric and left hypochondrial pain, which progressively increased in intensity and was associated with melena and rectal bleeding. On physical examination, he was hemodynamically stable, with mild tenderness in the left upper quadrant, no signs of peritoneal irritation, and positive findings for melena on digital rectal examination. Initial laboratory tests revealed no inflammatory response and normal hemoglobin levels. Upper gastrointestinal endoscopy and colonoscopy showed no abnormalities. Due to persistent abdominal pain, hepatobiliary ultrasound was performed, revealing a "target sign" suggestive of intussusception, which was confirmed with abdominal computed tomography. The patient underwent laparoscopic surgery, which identified an intestinal intussusception in the proximal ileum with a palpable intraluminal mass. Segmental resection and side-to-side anastomosis were performed. Histopathological analysis revealed a submucosal lipoma with ectopic pancreatic tissue. Conclusion: Intestinal intussusception in adults is rare and even less frequently associated with ectopic pancreatic tissue. [ABSTRACT FROM AUTHOR]

Introduction: Intussusception in adults is a rare manifestation after traumatic abdominal surgery, because after abdominal surgery patients often have functional bowel paralysis rather than increased intestinal motility. Case Report: 39-year-old male patient with acute intussusception appeared after surgery for diaphragmatic and splenic rupture. On day 7 postop, the patient has clinical manifestations of small bowel obstruction. Computed tomography image shows evidence of jejunum-jejunal intussusception. Exploratory laparotomy and resection of the necrotic bowel were performed. Rare cases such as intussusception should be observed postoperatively and in similar manifestations with careful examination of the characteristic CT findings, because of early detection and surgical intervention. with manual reduction can prevent the need for small bowel resection and possible unwanted complications. Discussion: Postoperative intussusception is rare and occurs primarily in the small intestine and should be indicated for emergency surgery in all cases, and this should be kept in mind by the surgeon and the resuscitator. The early diagnosis and intervention of patients increase the survival rate and the surgical efficiency. [ABSTRACT FROM AUTHOR]

Intussusception in adults is an extremely rare surgical clinical entity, its main etiology in this population is generally attributed to malignant origin, benign pathology is less frequent and presents a challenge for pre-surgical diagnose, since its presentation is non-specific and variable. Below is a clinical case that debuted with a clinical picture of intermittent pain in the right upper quadrant, manifesting exacerbation and non-specific laboratory tests, for which initially pathology of biliary origin was thought to be the reason for the pain, and therefore, an ultrasound of the liver and bile ducts was performed, observing signs suggestive of intussusception secondary to a lipoma, for which a simple abdominal tomography was performed to corroborate the diagnosis. [ABSTRACT FROM AUTHOR]

Introduction: colonic polyps affect up to 1% of the school age population, which usually cause lower digestive bleeding and pain; however, large ones can cause intussusception. Case presentation: nine-year-old female patient, previously healthy. She presents abdominal pain of 40 days duration, associated with rectal bleeding in recent days. Through imaging studies, she was diagnosed with colo-colic intussusception (CCI). Hydrostatic reduction was unsuccessful, so reduction was performed by laparotomy. The polyp was subsequently resected by colonoscopy. According to histopathological report, it was a juvenile polyp. Conclusions: CCI can be secondary to large or giant polyps. [ABSTRACT FROM AUTHOR]

The article titled "Intestinal obstruction in adults due to ileocolic intussusception" presents a clinical case of a 47-year-old patient with partial intestinal obstruction due to ileocolic intussusception. Intestinal intussusception is an intraluminal invagination of a segment of the intestine into an adjacent or distal segment. Although it is rare in adults, it represents 5% of all cases of intussusception. The diagnosis of this condition is challenging due to nonspecific clinical manifestations, but computed tomography is the imaging study of choice. Definitive treatment is based on surgical maneuvers. In this case, an exploratory laparotomy was performed and the invaginated segment was reduced, 70 cm of terminal ileum were resected, and a end-to-end anastomosis was performed. The anatomopathological study revealed a submucosal lipoma of the distal ileum. [Extracted from the article]

Intestinal invagination occurs when an intestinal segment is introduced into another segment. The appendicular presentation is less common and affects predominantly infants. The diagnosis is corroborated during the surgical intervention which consists of de-invagination followed by surgical removal of the appendix, if the latter is not possible then a wide resection or right hemicolectomy is indicated. We present the case of a 4-year-old girl who attended with a history of abdominal pain, anorexia, vomiting and fever; an abdominal ultrasound showed intestinal agglomeration and a rounded mass. The surgical findings included appendicular invagination that affected the cecum, the lesion was resected until the ascending colon. An ileostomy was performed, the anatomopathological findings indicated necrosis of the appendix. Three months later the normal intestinal transit was restored. Appendicular intussusception has non-specific symptoms and could be mortal in Peru. A detailed clinical history may help in diagnosing and offering proper treatment. [ABSTRACT FROM AUTHOR]

To report the case of a patient with appendicular intussusception (AI), an infrequent condition secondary to a focus of endometriosis, a pathology that has increased incidence in recent years. Material and Method: Clinical case, history and images obtained from the clinical file and intraoperative records with the consent of the patient. Results: A 35-year-old woman with abdominal pain. Colonoscopy study showing a 15 x 8 mm lesion in the appendicular ostium intussuscepted to the cecal lumen, and a computerized tomography (CT) enteroclysis confirming AI. A laparoscopic ileocecal resection is performed, demonstrating invagination of the appendix secondary to an endometrioma focus. Discussion: AI is a rare condition, with an incidence close to 0.01% in the general population. Benign pathologies are the main cause (77%), endometriosis being the most frequent cause. Conclusion: AI due to endometriosis is anecdotal, with unspecific symptoms. The available studies can adequately guide the presence of AI, however, on some occasions it can be confused with neoplastic pathologies, where surgery is important to elucidate the etiology. [ABSTRACT FROM AUTHOR]

This is the case of a young patient with an incidental endoscopic finding of a lesion in the cecum during follow-up colonoscopy with benign histology. The diagnostic process and surgical treatment are described. The existing literature was reviewed and the incidence, symptoms and indications of surgical treatment of this rare condition are discussed. [ABSTRACT FROM AUTHOR]

Rectal prolapse is the invagination of rectal layers through the anal canal and its protrusion out of it. Its incidence is 2.5 per 100 000 inhabitants with a predominance of elderly women. It is a little known, chronic condition of benign course, whose clinical and endoscopic presentation is so variable that it can be confused with other entities such as a colorectal cancer or ulcerative colitis. For these reasons a case of complete rectal prolapse in an adult male patient is presented. The surgical management performed is discussed. [ABSTRACT FROM AUTHOR]

Introduction: Adenomatous gastric polyps are uncommon and are usually found in the routine endoscopic examination. Gastroduodenal intussusception is a rare complication of those gastric polyps and has rarely been described as a cause of acute pancreatitis. Case report: We present the case of a 68 year old man who admitted to emergency with abdominal pain, nausea and vomiting initially classified as acute biliary pancreatitis etiology; a pedunculated gastric polyp intussuscepted into duodenum as a cause of acute pancreatitis was incidentally discovered, emergency endoscopic treatment and definitive treatment with open surgery was performed. [ABSTRACT FROM AUTHOR]

Prosthenorchis sp. is a common acanthocephalan in primates of the genus Saguinus, which produces gastrointestinal lesions associated with chronic diarrhea and low body condition. The diagnosis is incidental and surgical removal of the parasite is necessary as a treatment. The aim of this study was to describe the clinical presentation, diagnosis and therapeutic management of a Saguinus leucopus with nodules and ileal intussusception caused by Prosthenorchis sp. During the clinical examination, the patient was depressed, prostrate, hypothermic, and presenting low body condition, with generalized skin desquamation, alopecia in the distal third of the tail, and chipped canine teeth. Abdominal palpation evidenced nodules in groins. The blood count presented leukopenia, lymphopenia, and neutropenia; low hemoglobin; hypochromia and mild polychromatophilia. Prostenorchis sp. eggs and strongyles were found in stool. The patient was admitted to surgery, through which ileal intussusception was detected; for this reason, an enterotomy was performed followed by end-to-side enteroenterostomy of the ileum to the antimesenteric border of the caecum. Despite the antibiotic and analgesic treatment, the patient did not improve, it went into cardiac arrest and died. The histopathologic diagnosis was fibrinous peritonitis. This was a typical clinical history of Prosthenorchis sp., in which the patient's prognosis was bad and the outcome was not favorable, due both to parasitism and nutritional deficiencies present. Surgery is the treatment of choice; however, it is necessary to consider that patients with advanced clinical symptoms have a poor prognosis. [ABSTRACT FROM AUTHOR]

Intestinal intussusception is an uncommon condition in adults which causes 1% to 5% of intestinal obstructions. Although it is frequently associated with neoplastic pathologies or structural abnormalities of the gastrointestinal tract, up to 10% of cases are idiopathic. In most cases the diagnosis is made after surgery, but with the development of imaging techniques, a diagnosis is possible prior to intervention. This article presents a case in which the diagnosis was made preoperatively by CT scan and presents a review of the relevant literature. [ABSTRACT FROM AUTHOR]

The heterotopic pancreas (HP) is a rare condition in the pediatric population. HP cases involving an ileal intussusception are rare in children and very rarely reported, usually presenting with symptoms of intestinal obstruction. We report the case of a one year old male patient with a chronic history of anorexia, irritability, abdominal pain, accompanied by intermittent episodes of "currant jelly" stools that evolved to rectal bleeding. The patient presented a concomitant diagnosis of allergic colitis, which prolonged the effective surgical treatment at an external health center. In the abdominal CT scan, the classic "target" sign was found. In the exploratory laparotomy an ileoileal intussusception was confirmed, a mass was found that the histopathology laboratory confirmed as HP. To our knowledge, it is the first case of pediatric intussusception by HP reported in Peru. [ABSTRACT FROM AUTHOR]

Intussusception is a rare cause of intestinal obstruction in adults. Only about 3 cases per million people are reported in the literature each year. It is an uncommon condition that is more prevalent in children. In adults, it is most often as sociated with neoplasms, postoperative scars, Meckel's diverticulum, foreign bodies or celiac disease, but 20% of these cases have idiopathic causes. We present a case and review of the literature. [ABSTRACT FROM AUTHOR]

Intestinal intussusception in adults occurs infrequently. In this study we describe two cases of acute surgical events characterized by abdominal pain, masses and obstructive symptoms. One of these cases occurred in an 18 year old woman with jejuno-jejunal intussusceptions due to a hamartomatous polyp. The other case was a 40 year woman with a colo-colonic intussusception due to a submucosal lipoma in the descending colon. [ABSTRACT FROM AUTHOR]

Introduction: Intussusception is uncommon in adult age. Frequently, depending on the location is associated to a subjacent pathology. Given multiple applications of sectional imaging methods such as CAT, intussusception is found incidentally in most of the cases. Objective: Determining signs allowing to recognize it, identifying causing or demonstrating the spontaneous reduction through CAT. Material and methods: A series of patients hospitalized in our institution, with several clinical diagnoses, in a period of 3 years 6/12 and that incidentally, intussusception was appreciated. Studies were carried out with 8 detectors CAT with simple phase pelvic-abdominal protocol and with oral contrasts and IV - arterial, portal and excretory phases -. Results: Invagination in 37 patients (17 male patients, 46% and 20 female patients, 54%) with an age range of 19 to 65 years old was shown, demonstrating the following percentages: The most common invagination sites, of uncertain etiology, of dynamic spontaneous resolution and was indeed shown with intraabdominal tumoral lesions (five cases, 14%). Conclusions: Invagination in adults is infrequent, causing 1% of intestinal obstructions. In an increased percentage, reaching up to 86 % of cases, intussusception is an incidental, asymptomatic and idiopathic findings, during CT studies. [ABSTRACT FROM AUTHOR]