CONGENITAL GONADAL STROMAL TUMOR OF THE T ESTIS

Congenital Gonadal Stromal Tumor of the Testis: Sex cordstromal tumors of the testis are proliferations derived from a common mesenchymal st em cell that can give rise to pure or mixed tumors of different stroma l cells (Leydig cells, Sertoli cells, granulosa cells, theca cells and primitive stromal cells). Mostly, these tumors are localized benign l esions, however, malignant growth with metastases occurs in 20% of the patients. We present a newborn with a multicystic gonadal stromal tum or consisting of both Sertoli/Leydig cells and granulosa/theca cells. Pathology, clinical evidence, diagnosis, treatment and prognosis are d iscussed on the basis of this case.