我院普外科1990年1月～1994年9月共收治原发性胰体尾部癌12例，仅1例及时行B超检查确诊，余11例曾被误诊为其他疾病，误诊率达91．6％，平均延误时间73．5天。临床资料本组男9例，女2例；年龄45～70岁，平均575岁。常见症状：腹痛9例，腹胀6例，黄疸2例，腹部包块3例，便秘3例 From January 1990 to September 1994, 12 cases of primary pancreatic body and tail cancer were treated in our general surgery department from January 1990 to September 1994. Only one case was diagnosed by B-ultrasound in a timely manner. The remaining 11 cases were misdiagnosed as other diseases. The misdiagnosis rate was 91. 6%, with an average delay of 73.5 days. Clinical data The group of 9 males and 2 females; aged 45 to 70 years, an average of 575 years old. Common symptoms: abdominal pain in 9 cases, abdominal distention in 6 cases, jaundice in 2 cases, abdominal mass in 3 cases, constipation in 3 cases