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Leydig cell tumor of the testis: a cytohistological, immunohistochemical, and ultrastructural case study
A Assi1, M Sironi, A M Bacchioni
1Department of Pathology, Legnano General Hospital, Italy.
Diagnostic Cytopathology
|March 1, 1997
Abstract:
We report a case of Leydig cell tumor of the testis in a young man, in whom preoperative diagnosis was achieved by fine-needle aspiration biopsy cytology. Cytology, histology, and ultrastructural examination showed diagnostic Reinke's crystals, both in nuclei and in cytoplasm. Immunohistochemistry displayed strong vimentin and estrogen positivity.