[Interstital-cell tumor. Case report and ultrastructure (author's transl)].
The ultrastructural features of the testicular interstitial tumor of a 69yr-old man were examined. There were light cells and dark interstitial cells. The cells possessed large amounts of agranular endoplasmatic reticulum. The granular endoplasmatic reticulum was augmented. There were membran-free ribosomes, paracrystalline inclusions and intramitochodrial bodies. Large amounts of hormone were detected in the tumor.
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