BACKGROUND: Sertoli cell tumor of the testis is a relatively rare neoplasm,
and few reports concerning its cytologic findings have been previously doc
umented.
CASE: A 41-year-old male had Sertoli cell tumor in the left testis. An impr
int smear revealed tumor cells showing it less cohesive or singly dispersed
cell pattern. The cytoplasm was faintly stained, and most tumor cells were
linked. The nuclei were oval or short and spindle in shape, and some of th
em showed coffee bean nuclei or nuclear indentation.
CONCLUSION: Coffee bean nuclei can be observed in Sertoli cell tumor.