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Am J Clin Pathol. 2001 Aug;116(2):183-90.

Clinicopathologic analysis of CD10+ and CD10- diffuse large B-cell lymphoma. Identification of a high-risk subset with coexpression of CD10 and bcl-2.

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Dept of Pathology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX 75390-9072, USA.


We analyzed 53 cases of diffuse large B-cell lymphoma (DLBCL) to determine whether expression of CD10 is a relevant biologic parameter. Tumor morphologic features were assessed semiquantitatively. Bcl-2 protein expression was studied by immunohistochemical analysis. The presence or absence of CD10 by flow cytometry was correlated with clinical and pathologic characteristics. CD10+ (23 cases) and CD10- (30 cases) DLBCLs were indistinguishable based on age, sex, extranodal presentation, B symptoms, clinical stage, morphologic features, or bcl-2 expression. However, cases with a CD10+ phenotype showed a significantly lower rate of complete remission. Cases expressing bcl-2 showed trends toward a lower rate of complete remission and poorer overall survival. Examination of CD10 and bcl-2 interaction revealed that the prognostic effects for both of these antigens were due to a subset of CD10+ bcl-2-positive cases. Compared with cases expressing one or neither of these markers, patients with dual-positive tumors had a poorer complete response rate to initial therapy and strikingly worse overall survival. While CD10+ and CD10- DLBCLs are similar with regard to a variety of clinical and pathologic features, CD10 and bcl-2 coexpressing tumors are an extremely high-risk subset based on response to therapy and overall survival.

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