胰腺平滑肌肉瘤少见，本文报告１例。患者，男，４５岁。１个月前开始上腹部轻度饱胀感，扪及上腹部有一肿块，轻微疼痛。无发热，黄疸，恶心，呕吐，返酸，嗳气，呕血，黑便，腹泻等。尿正常。１个月内体重下降近５ｋｇ。既往史无特殊。以腹部肿块性质待查于１９９６年１... Pancreatic leiomyosarcoma is rare and has been reported in 1 case. Patient, male, 45 years old. One month ago, I began to feel mildly full on the upper abdomen. There was a bump in the upper abdomen and slight pain. No fever, jaundice, nausea, vomiting, acid reflux, belching, hematemesis, black stools, diarrhea, etc. Normal urine. Within a month, weight dropped by nearly 5kg. No special past history. The nature of the abdominal mass to be investigated in 1996 1...