METASTATIC TESTICULAR SERTOLI-CELL TUMOR - CYTOPATHOLOGIC FINDINGS ONFINE-NEEDLE ASPIRATION

Malignant Sertoli-cell tumors of the testis are exceedingly rare. We p resent cytopathologic findings in pelvic metastasis of such a tumor in a 45-year-old man, diagnosed on fine-needle aspiration, 2 months afte r radical orchiectomy. Ultrasound-guided aspirate showed tissue fragme nts nod isolated discohesive tumor. cells with characteristics of test icular Sertoli cells. Immunoperoxidase (IPOX) studies and histopatholo gic correlation with the primary testicular tumor are also presented. Cytopathologic features complimented by IPOX studies should allow an a ccurate diagnosis of this rare entity, when seen at metastatic sites. Diagn. Cytopathol. 1998; 19:127-130, (C) 1998 Wiley-Liss, Inc.