Inoue Minoru, Osaka Akiyoshi, Ikezoe Erika, Tsujioka Hiroki, Nirazuka Asumi, Hasegawa Kintaro, Iwahata Toshiyuki, Nakayama Akinori, Setoguchi Kiyoshi, Saito Kazutaka
Department of Urology Dokkyo Medical University Saitama Medical Center Koshigaya Saitama Japan.
IJU Case Rep. 2024 Jul 31;7(5):364-367. doi: 10.1002/iju5.12755. eCollection 2024 Sep.
Transverse testicular ectopia is a rare anomaly in which both testes descend toward the same side of the hemiscrotum.
A 35-year-old man presented with right inguinal enlargement. Computed tomography showed a normal testis in the right hemiscrotum and a 58 mm heterogeneous mass in the right inguinal area. No testis was observed in the left hemiscrotum. The vascular structures extended from the right inguinal mass to the left renal vein. Consequently, the left testicular tumor was diagnosed as transverse testicular ectopia, and a left orchiectomy was performed. The histological diagnosis was seminoma stage pT2. Furthermore, left para-aortic lymph node metastasis developed 10 months postoperatively. A complete response was obtained after systemic chemotherapy.
Awareness of seminomas in transverse testicular ectopia could facilitate appropriate diagnosis and treatment. Furthermore, the location of the lymph node metastasis indicated that the ectopic testis could have originated from the left side.
睾丸横过异位是一种罕见的异常情况，即双侧睾丸均降至阴囊同一侧。
一名35岁男性因右侧腹股沟肿大就诊。计算机断层扫描显示右侧阴囊内有一个正常睾丸，右侧腹股沟区有一个58毫米的不均匀肿块。左侧阴囊未发现睾丸。血管结构从右侧腹股沟肿块延伸至左肾静脉。因此，左侧睾丸肿瘤被诊断为睾丸横过异位，并进行了左侧睾丸切除术。组织学诊断为pT2期精原细胞瘤。此外，术后10个月出现左主动脉旁淋巴结转移。全身化疗后获得完全缓解。
认识睾丸横过异位中的精原细胞瘤有助于进行恰当的诊断和治疗。此外，淋巴结转移的部位表明异位睾丸可能起源于左侧。
