Fig. 2
From: Canine ovarian gonadoblastoma with dysgerminoma overgrowth: a case study and literature review
Histological features of the three neoplastic lesion components: Gonadoblastoma, dysgerminoma and sex cord-stromal tumour component (H&E). (a) Neoplastic nest composed of germ cells admixed with Sertoli/granulosa-like cells (black arrow), the latter being predominantly in the periphery of the nest (coronal pattern). (b) Note Sertoli/granulosa-like cells (black arrow) surrounding small round hyaline bodies within the nest (Call-Exner-like pattern). (c) Dysgerminoma cells arranged in cords. (d) Note the dysgerminoma pseudo-glandular pattern. (e) Proliferation of dysgerminoma (D) and sex cord-stromal neoplastic component resembling a Sertoli tumour (S), the latter being arranged in solid tubules. (f) Neoplastic sex cord-stromal cells arranged papillary structures