2019-23 / JULY 15 (CONTRIBUTOR: SOUNAK GUPTA)
A 33-year old male with a prior history of a desmoplastic medulloblastoma was found to have a 1 cm left testicular mass on follow up. Representative images of this lesion are shown. The immunophenotype is as follows:
Positive: SF1, S100, CD68 and vimentin
Negative: calretinin, inhibin, CK AE1/3, CD31, CD34, SMA, melan A, HMB45, CD163
Click on the below thumbnails to enlarge photos.
How would you classify this tumor based on the provided images?
a. Testicular germ cell tumor
b. Leydig cell tumor
c. Sertoli cell tumor
d. Metastatic tumor