PMID: 11927966Apr 3, 2002Paper

Testicular seminoma: a clinicopathologic and immunohistochemical study of 105 cases with special reference to seminomas with atypical features

International Journal of Surgical Pathology
Satish K TickooV Reuter

Abstract

In spite of the high curability rates, rare cases of testicular seminoma behave in an unexpectedly aggressive manner. No effective markers are currently available that can predict such uncommon behavior. We studied 105 cases of testicular seminoma on whom the primary resection was performed at the Memorial Sloan-Kettering Cancer Center, New York, to investigate any relationship between morphology, immunohistochemical features, and clinical/pathological stages. Fifty-nine percent of the cases presented with pT stage 1 and 74 percent with American Joint Committee on Cancer (AJCC) stage I. In univariate analysis, tumor size, mitotic count, and presence of necrosis showed significant associations with pT stage (p = 0.0001, 0.0001, and 0.04, respectively), and the presence of vascular invasion (p = 0.0001, 0.0001, and 0.02, respectively). In multivariate analysis, both the tumor size and mitotic counts were independent predictors of pT stage (p = 0.0004 and 0.0001) and vascular invasion (p = 0.0004 and 0.0001). When tumors were separated on the basis of architectural and/or cytological atypia into "usual seminomas" and "seminomas with atypia", these were significantly associated with AJCC stage (p = 0.02), and c-kit protein (p = 0.0...Continue Reading

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