Histologic factors affecting prognosis of pure seminoma of the testis

The histologic features of 92 cases of pure seminoma of the testis were reviewed in relation to the presence and degree of fibrosis, necrosis, granulomatous and lymphocytic reactions, interstitial cell hyperplasia, and lymphatic and/or vascular invasion associated with the primary tumor. No relationship between any of the histologic factors studied and survival was established.