隐睾是发生睾丸肿瘤最常见的危险因素,发生睾丸肿瘤的机会比正常人高20～40倍,腹内型隐睾的肿瘤发生率高于腹股沟或外环处隐睾,腹内型隐睾占隐睾总数的15%,但发生恶变的睾丸中50%是腹内型隐睾[1]。本例一侧隐睾恶变,对侧腹内型隐睾,现报告如下。1临床资料患者,男,44岁,出生后双 Cryptorchidism is the most common risk factors of testicular cancer occurs, the chance of testicular tumors 20 to 40 times higher than normal, intra-abdominal cryptorchidism tumor incidence higher than the inguinal or outer ring cryptorchidism, intra-abdominal cryptorchidism Accounting for 15% of the total number of cryptorchidism, but 50% of testicular malignant lesions are intra-abdominal cryptorchidism [1]. In this case side of cryptorchid malignant transformation, contralateral abdominal cryptorchidism, are as follows. 1 clinical data patients, male, 44 years old, double after birth