家族性腺瘤性息肉 (familial ademomatous polyposis,FAP) ,原名家族性多发性息肉 ,是一种少见的常染色体显性遗传性疾病 ,现报告一家 3例患该病并均已癌变的病例。1　病历简介例 1:男 ,4 1岁。间歇性便血 2 5年 ,伴有粘液便及左下腹疼痛。因便血少及经济条件所限 ,未进行正规 Familial ademomatous polyposis (FAP), formerly known as familial polypus, is a rare autosomal dominant inherited disease. Three cases of this disease, both cancerous, have been reported. 1 medical records brief introduction Example 1: male, 4 1 years old. Intermittent blood in the stool 25 years, accompanied by mucus and left lower quadrant pain. Due to less blood and limited economic conditions, not formal