試題詳解

32.A 23-year-old man presents with acute onset severe testicular pain. The testis is enlarged, hemorrhagic,
and non-transilluminant. Histology after orchiectomy shows sheets of uniform large cells with clear and pon tamsillt iects of unifo cytonlasm distinct cell ho cytoplasm, distinct cell borders, and prominent nucleoli separated by delicate fibrous septa infiltrated
bycytoplasm, distinet cell borders, ad promne mostlik lymphocytes. Which one (including associated marker) is most likely to be the diagnosis of this tumor?
(A) Teratoma (CK)
(B) Seminoma (Placental alkaline phosphatase, PLAP)
(C) Yolk sac tumor (Alpha-fetoprotein, AFP)
(D) Choriocarcinoma Human chorionic gonadotropin (hCG)