Testicular teratoma and primary retroperitoneal choriocarcinoma with lung metastasis: a case report.

ABSTRACT:

Background

Male primary retroperitoneal choriocarcinoma (PRC) is rare with poor prognosis. No literature reports co-occurrence of testicular teratoma and PRC diagnosed after puberty.

Case description

A 23-year-old man presented pain in the right lower abdomen for 11 days without any other symptoms. He claimed he was not a smoker and had no history of any disease. Physical examination found his pain got worse in supine position. Laboratory testing found white blood cell count of 11.0×10⁹/L, C-reactive protein of 40.0 mg/L, and β human chorionic gonadotropin of 5,350.27 IU/L. Ultrasound found a hypoechoic mass (0.8 cm × 0.5 cm) in the right testis. Image examinations confirmed a retroperitoneal mass (42 mm × 42 mm) bleeding with hematoma and lung metastasis. Orchiec

SUBMITTER: Hu HB 

PROVIDER: S-EPMC12593091 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature