Figure 7
From: Clinical, genetic, and pathological features of male pseudohermaphroditism in dog
Left testicle, sustentacular [Sertoli] cell tumor. Hypoplastic and neoplastic seminiferous tubuli surrounded by dense connective tissue are visible. The tubules are dilated and lined by columnar cells, rarely microvacuolated, and by numerous large cells with poorly distinct borders, eosinophilic and macrovacuolated cytoplasm (sustentacular neoplastic cells, arrows). Haematoxylin and Eosin, 4X.