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Background Transomental hernias are a rare type of internal hernia. We report two cases of successful cases of laparoscopic repair. One required laparotomy due to concern for intestinal viability. Case presentation The first patient was a 67-year-old man who presented with abdominal pain and vomiting. He had no history of laparotomy or abdominal injury. Computed tomography suggested small bowel obstruction and possible intestinal strangulation. Emergent laparoscopy found approximately 200 cm of small bowel was strangulated around the greater omentum. The strangulation was released laparoscopically, but because of the color of the strangulated bowel, laparotomy was performed to evaluate viability. The involved portion of intestine was not resected. The patient experienced transient postoperative paralytic ileus and was discharged on postoperative day 14. The second patient was a 56-year-old man who presented with abdominal pain. Abdominal computed tomography revealed dilatation of the small intestine and a closed loop suggesting ileus due to intestinal strangulation. An emergency laparoscopy found a transomental hernia, and the strangulation was released laparoscopically. Recovery was uneventful, and the patient was discharged on postoperative day 6. Conclusion Transomental hernia can be successfully treated laparoscopically. In cases where bowel viability is a concern, laparotomy should not be hesitated.

Objective: To evaluate limb-salvage surgery including vascular resection for lower-extremity soft-tissue sarcomas and carcinomas for adult patients. Materials and Methods: Eight consecutive patients (median age, 59 years) who underwent vascular replacement during surgery for malignant tumors in the lower limbs between November 2006 and March 2018 were evaluated. Patient data were retrospectively obtained in a computerized database. Arterial and venous reconstructions were performed for seven patients, with one additional patient receiving venous reconstruction only. Autologous-vein (n=6) and synthetic bypasses were used for arterial repairs, whereas only autologous veins were implanted for venous repairs. Results: Morbidity was 62.5%, and in-hospital mortality was 12.5%. At a median follow-up of 24 months, the primary patency rates of arterial and venous reconstructions were 85.7% and 62.5%, respectively. Limb salvage was achieved in all cases. Conclusion: Early and mid-term bypass patency rates, the high percentage of limb salvage, and the oncologic outcome underline the efficacy of en bloc resection of soft-tissue tumors involving major vessels of the lower limbs. The anticipated need for vascular resection and reconstruction should not be a contraindication to sarcoma and carcinoma resections. However, efforts to achieve better control over systemic spread are required for long-term survival.

A 65-year-old male patient presented with a chief complaint of abdominal pain. Abdominal computed tomography (CT) showed slight intestinal dilation and obstruction of the upper right quadrant of the small intestine, while ectopic gastric mucosal scintigraphy revealed abnormal accumulation in agreement with the CT-identified structure. The cause of bowel obstruction was diagnosed as Meckel’s diverticulum; the patient was referred for surgery. A small laparotomy was performed with a 35-mm skin incision to the center of the navel. Once a lap disk was attached, a laparoscope was inserted to visualize the abdominal cavity. The small intestine that includes the structure was pulled out from the umbilicus to the outside of the peritoneal cavity and partially resected. On the pathological tissue findings, the patient was diagnosed with Meckel’s diverticulum. We report our experience with single-lap laparoscopic surgery for a case of intestinal obstruction caused by Meckel’s diverticulum and review pertinent literature.

Hypogenesis or agenesis of right hepatic lobe is a rare abnormality and is generally associated with gallbladder and biliary tract abnormalities. Cases of biliary injury following cholecystectomy have been reported in patients with agenesis of right hepatic lobe because the anatomical anomalies complicate the surgical approach. We report a case of laparoscopic cholecystectomy in a patient with hypogenesis of right hepatic lobe. A 92-year-old male patient was admitted to our hospital with fever and right lower abdominal pain with suspected acute appendicitis. Abdominal computed tomography revealed gallstones with acute cholecystitis and hypogenesis of right hepatic lobe. He underwent laparoscopic cholecystectomy with the left semilateral decubitus position. The patient's postoperative course was uneventful. In conclusions, some patients with liver lobe hypoplasia do not present with the typical symptoms of acute cholecystitis due to dislocation of the gallbladder. The left semilateral decubitus position with modified placement of port sites is useful for laparoscopic cholecystectomy in patients with hypogenesis of right hepatic lobe.