Schwannomas are neurogenic tumors that arise from the neural sheaths of peripheral nerves.These tumors can be located in any area of the human body;the most common locations are the head,neck,trunk and extremities.Pan...Schwannomas are neurogenic tumors that arise from the neural sheaths of peripheral nerves.These tumors can be located in any area of the human body;the most common locations are the head,neck,trunk and extremities.Pancreatic schwannomas are very rare.Over the past 40 years,only 67 cases of pancreatic schwannomas have been reported in the English literature.Here we present a case of pancreatic schwannoma in a 62-year-old male.The tumor was revealed by ultrasound and computed tomography in the neck and body of the pancreas.An accurate diagnosis was difficult to obtain preoperatively.The patient consented to the performance of a laparotomy,and the mass was found in the neck and body of the pancreas and successfully treated using a spleenpreserving distal pancreatectomy with splenic artery and vein preservation.The procedure has only been reported in one other case of pancreatic schwannoma;here we present the second reported case.Macroscopically,the tumor was well circumscribed,gray-white in color and3.3 cm×2.8 cm in size.Microscopically,the tumor cells were spindle-shaped and had a palisading arrangement with no atypia,which are results compatible with a benign tumor.Both hypercellular and hypocellular areas were visible.Immunohistochemically,the tumor cells were strongly positive for S-100 protein.The tumor was definitively diagnosed as a schwannoma of the pancreatic neck and body.The patient was followed for 72 mo and has been doing well without any complications.展开更多
Rhabdomyomatous well-differentiated esophageal liposarcomas are extremely rare. As of August 2016, only one other such case has been reported in the Englishlanguage medical literature. Liposarcomas in general are one ...Rhabdomyomatous well-differentiated esophageal liposarcomas are extremely rare. As of August 2016, only one other such case has been reported in the Englishlanguage medical literature. Liposarcomas in general are one of the most common soft tissue neoplasms in adults, but the incidence of primary esophageal liposarcomas is exceptionally low. There have been only 42 reported cases of primary liposarcoma of the esophagus worldwide thus far. These malignancies are harbored within giant fibrovascular polyps, which slowly grow within the esophageal lumen causing obstructing symptoms. We hereby present the case of a 68-year-old male patient who came in with a 2-mo history of worsening intermittent dysphagia, persistent cough, and postprandial retrosternal pain. After an esophagogastroduodenoscopy, a computed tomographic scan, and a diagnostic endoscopy, complete endoscopic resection was performed of the 13 cm×6 cm×2.6 cm fibrovascular polyp. A literature review was done and results are presented herein.展开更多
基金the National Basic Research Program of China(973 Program),No.2013CB531403the National Natural Science Foundation of China,No.81572307the ZhejiangNatural Science Foundation,No.LY15H160033
文摘Schwannomas are neurogenic tumors that arise from the neural sheaths of peripheral nerves.These tumors can be located in any area of the human body;the most common locations are the head,neck,trunk and extremities.Pancreatic schwannomas are very rare.Over the past 40 years,only 67 cases of pancreatic schwannomas have been reported in the English literature.Here we present a case of pancreatic schwannoma in a 62-year-old male.The tumor was revealed by ultrasound and computed tomography in the neck and body of the pancreas.An accurate diagnosis was difficult to obtain preoperatively.The patient consented to the performance of a laparotomy,and the mass was found in the neck and body of the pancreas and successfully treated using a spleenpreserving distal pancreatectomy with splenic artery and vein preservation.The procedure has only been reported in one other case of pancreatic schwannoma;here we present the second reported case.Macroscopically,the tumor was well circumscribed,gray-white in color and3.3 cm×2.8 cm in size.Microscopically,the tumor cells were spindle-shaped and had a palisading arrangement with no atypia,which are results compatible with a benign tumor.Both hypercellular and hypocellular areas were visible.Immunohistochemically,the tumor cells were strongly positive for S-100 protein.The tumor was definitively diagnosed as a schwannoma of the pancreatic neck and body.The patient was followed for 72 mo and has been doing well without any complications.
文摘Rhabdomyomatous well-differentiated esophageal liposarcomas are extremely rare. As of August 2016, only one other such case has been reported in the Englishlanguage medical literature. Liposarcomas in general are one of the most common soft tissue neoplasms in adults, but the incidence of primary esophageal liposarcomas is exceptionally low. There have been only 42 reported cases of primary liposarcoma of the esophagus worldwide thus far. These malignancies are harbored within giant fibrovascular polyps, which slowly grow within the esophageal lumen causing obstructing symptoms. We hereby present the case of a 68-year-old male patient who came in with a 2-mo history of worsening intermittent dysphagia, persistent cough, and postprandial retrosternal pain. After an esophagogastroduodenoscopy, a computed tomographic scan, and a diagnostic endoscopy, complete endoscopic resection was performed of the 13 cm×6 cm×2.6 cm fibrovascular polyp. A literature review was done and results are presented herein.
