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Gynandroblastoma: its ultrastructure.
Cancer 1982 August 16
Gynandroblastoma is a rare, sex-cord stromal tumor of the ovary that shows morphologic evidence of female and male differentiation. Such a tumor produced masculinization in a 24-year-old woman, whose symptoms disappeared following removal of the tumor. By electron microscopy, the granulosa cell nests displayed Call-Exner (CE) bodies of the hyaline type composed of multiple layers of basal lamina resembling CE bodies of the normal graafian follicle. In contrast, CE bodies of a classic granulosa theca cell tumor were of the spongiform type, consisting of a space limited by a single basal lamina containing altered granulosa cells and cell processes. Both types of CE bodies are believed to arise following secretion by and/or degeneration of granulosa cells, the variation in morphology between the two resulting from differences in amounts of basal lamina deposited. The tubular components of the tumor resembled more closely the rete ovarii than did Sertoli cells, and its proposed that such structures be called by the alternate and less specific term "androblastoma." The identity of Leydig cells was established by demonstrated of intracytoplasmic Reinke crystals. Despite a difference in architectural pattern, there was a close ultrastructural resemblance between the different sex-cord components of the gynandroblastoma.
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