Cutaneous B-Cell Lymphoma

Abstract

SUMMARY Cutaneous B-cell Lymphoma (CBCL) is a subdiagnosed clinical entity, because many times it is confused with non-neoplastic inflammatory processes. It happens because this is a kind of indolent lymphoma, which has low aggressiveness and low capacity of dissemination. A cutaneous lymphoma can be originated from B-cells or T-cells, and the most frequent one is the T-cell lymphoma (CTCL). The immunohistochemistry is of great importance for the diagnosis, because it is able to differentiate B and T cells, besides evidencing the disordered replication of cells. The CBCL can be classified as primary or secondary, being the primary the one which has its origin in the skin, while the secondary is originated in another place and then affects the skin. In this work, the authors present a clinical case of primary CBCL, whose treatment used for regression was radiotherapy. The results were satisfactory, once the tumor regressed and, in a period of three years, there was no recurrence of it. The objective of this work is, therefore, to raise the number of correctly diagnosed cases and encourage the utilization of radiotherapy as an appropriate treatment for localized lesions. DESCRIPTORS B-cell lymphoma. Cutaneous Neoplasm. Non-Hodgkin Lymphoma.