Cytogenetics of a pediatric unclassified sex cord-stromal tumor of the testis: a case report

Unclassified sex cord-stromal tumors account for a small proportion of pediatric testicular tumors and, while most are clinically benign, some have demonstrated malignant potential. Histological findings do not correlate well with clinical behavior and, while cytogenetics may aid in both diagnosis and predicting clinical behavior, these data on sex cord-stromal tumors are scarce. We describe an unclassified sex cord-stromal tumor occurring in the testis of a prepubertal male without evidence of metastasis that had a previously unreported 54,XY,+3,+7,+9,+12,+13,+18,+19,+20 karyotype.