Primary neoplasms arising in the anal canal are relatively unusual.In particular, adenomas and adenocarcinomas are distinctly rare entities in this region.We describe an infiltrating, well-differentiated adenocarcinom...Primary neoplasms arising in the anal canal are relatively unusual.In particular, adenomas and adenocarcinomas are distinctly rare entities in this region.We describe an infiltrating, well-differentiated adenocarcinoma arising in a villous adenoma from the distal anal canal, in an otherwise healthy patient at low risk for gastrointestinal malignancy.This is the case of an octogenarian man with a several year history of hemorrhoids and intermittent rectal bleeding, more recently complaining of continuous hematochezia.Examination revealed a blood-covered pedunculated mass with a long stalk protruding from the anus.The lesion was amputated at the bedside.Microscopic evaluation revealed an infiltrating well-differentiated adenocarcinoma, arising from a villous adenoma.This was further evaluated under anesthesia and complete excision of distal anal tissue was performed.Our report is the f irst describing the possible malignant degeneration of a villous adenoma in the anal canal.展开更多
To date, antegrade intussusception involving a Roux-en-Y reconstruction has been reported only once. We report a case of acute bowel obstruction due to an intussusception involving two Roux-en-Y limbs in a 40-year-old...To date, antegrade intussusception involving a Roux-en-Y reconstruction has been reported only once. We report a case of acute bowel obstruction due to an intussusception involving two Roux-en-Y limbs in a 40-year-old woman with a history of chronic pancreatitis due to pancreas divisum. Four years preceding this event, the patient had undergone a Whipple procedure, and three years prior to that, a Puestow operation. The patient was successfully treated with bowel resection and a side-to-side anastomosis between the most distal aspect of the bowel and the most distal Roux-en-Y reconstruction, which preserved both Roux-en-Y reconstructions.展开更多
文摘Primary neoplasms arising in the anal canal are relatively unusual.In particular, adenomas and adenocarcinomas are distinctly rare entities in this region.We describe an infiltrating, well-differentiated adenocarcinoma arising in a villous adenoma from the distal anal canal, in an otherwise healthy patient at low risk for gastrointestinal malignancy.This is the case of an octogenarian man with a several year history of hemorrhoids and intermittent rectal bleeding, more recently complaining of continuous hematochezia.Examination revealed a blood-covered pedunculated mass with a long stalk protruding from the anus.The lesion was amputated at the bedside.Microscopic evaluation revealed an infiltrating well-differentiated adenocarcinoma, arising from a villous adenoma.This was further evaluated under anesthesia and complete excision of distal anal tissue was performed.Our report is the f irst describing the possible malignant degeneration of a villous adenoma in the anal canal.
文摘To date, antegrade intussusception involving a Roux-en-Y reconstruction has been reported only once. We report a case of acute bowel obstruction due to an intussusception involving two Roux-en-Y limbs in a 40-year-old woman with a history of chronic pancreatitis due to pancreas divisum. Four years preceding this event, the patient had undergone a Whipple procedure, and three years prior to that, a Puestow operation. The patient was successfully treated with bowel resection and a side-to-side anastomosis between the most distal aspect of the bowel and the most distal Roux-en-Y reconstruction, which preserved both Roux-en-Y reconstructions.
