Colonic metastasis from other organs is very rare.Here we report the case of a 62-year-old man with a history of pancreatoduodenectomy for stage IIB pancreatic head cancer performed seven years back.He presented with ...Colonic metastasis from other organs is very rare.Here we report the case of a 62-year-old man with a history of pancreatoduodenectomy for stage IIB pancreatic head cancer performed seven years back.He presented with abdominal distension and pain.Under the preoperative diagnosis of bowel obstruction,surgical treatment was performed,and a circumferential lesion causing bowel obstruction of the ascending colon was detected.A right hemicolectomy with lymph node dissection was performed.The specimen showed a 5-cm wall thickening with a cobble-stone like appearance of the ascending colon,which morphologically appeared scirrhous.Histological examination revealed cancer nests invading from the subserosa to the muscular and submucosal layers of the colon.Immunohistochemical analysis of the tumor cells demonstrated positive staining for cytokeratin 7,but negative for cytokeratin 20,which was the same as the previous pancreatic cancer specimen.These pathological and immunohistochemical features strongly supported the diagnosis of colonic metastasis from the pancreas.Thereafter,the patient received systemic chemotherapy,but unfortunately,he died 14 mo after the surgery.展开更多
Despite its abundant vascularization and extensive circulatory communication with neighboring organs, metastases to the penis are a rare event. A 57-yearold male, who had undergone total pelvic exenteration for rectal...Despite its abundant vascularization and extensive circulatory communication with neighboring organs, metastases to the penis are a rare event. A 57-yearold male, who had undergone total pelvic exenteration for rectal cancer sixteen months earlier, demonstrated an abnormal uptake within his penis by positron emission tomography/computed tomography. A single elastic nodule of the middle penis shaft was noted deep within Bucks fascia. No other obvious recurrent site was noted except the penile lesion. Total penectomy was performed as a curative resection based on a diagnosis of isolated penile metastasis from rectal cancer. A histopathological examination revealed an increase of well differentiated adenocarcinoma in the corpus spongiosum consistent with his primary rectal tumor. The immunohistochemistry of the tumor cells demonstrated positive staining for cytokeratin 20 and negative staining for cytokeratin 7, which strongly supported a diagnosis of penile metastasis from the rectum. The patient is alive more than two years without any recurrence.展开更多
文摘Colonic metastasis from other organs is very rare.Here we report the case of a 62-year-old man with a history of pancreatoduodenectomy for stage IIB pancreatic head cancer performed seven years back.He presented with abdominal distension and pain.Under the preoperative diagnosis of bowel obstruction,surgical treatment was performed,and a circumferential lesion causing bowel obstruction of the ascending colon was detected.A right hemicolectomy with lymph node dissection was performed.The specimen showed a 5-cm wall thickening with a cobble-stone like appearance of the ascending colon,which morphologically appeared scirrhous.Histological examination revealed cancer nests invading from the subserosa to the muscular and submucosal layers of the colon.Immunohistochemical analysis of the tumor cells demonstrated positive staining for cytokeratin 7,but negative for cytokeratin 20,which was the same as the previous pancreatic cancer specimen.These pathological and immunohistochemical features strongly supported the diagnosis of colonic metastasis from the pancreas.Thereafter,the patient received systemic chemotherapy,but unfortunately,he died 14 mo after the surgery.
文摘Despite its abundant vascularization and extensive circulatory communication with neighboring organs, metastases to the penis are a rare event. A 57-yearold male, who had undergone total pelvic exenteration for rectal cancer sixteen months earlier, demonstrated an abnormal uptake within his penis by positron emission tomography/computed tomography. A single elastic nodule of the middle penis shaft was noted deep within Bucks fascia. No other obvious recurrent site was noted except the penile lesion. Total penectomy was performed as a curative resection based on a diagnosis of isolated penile metastasis from rectal cancer. A histopathological examination revealed an increase of well differentiated adenocarcinoma in the corpus spongiosum consistent with his primary rectal tumor. The immunohistochemistry of the tumor cells demonstrated positive staining for cytokeratin 20 and negative staining for cytokeratin 7, which strongly supported a diagnosis of penile metastasis from the rectum. The patient is alive more than two years without any recurrence.
