Primary cutaneous follicle center lymphoma simulating basal-cell carcinoma on the nasal ala

Primary cutaneous b-cell lymphomas (pcbcls) constitute 25% of all primary cutaneous lymphomas. they present in the skin with no evidence of systemic or extracutaneous disease at the time of diagnosis,after adequate staging. primary cutaneous b-cell lymphomas differsignificantly from their nodal counterparts in relation to both clinical behavior and prognosis. the distinction between primary and secondary b-cell lymphomas is essential for defining prognosis/course of action. such distinction is also very difficult to make,since primary and secondary b-cell lymphomas are clinically and histologically indistinguishable. we report the case of a patient with primary cutaneous follicle center lymphoma who underwent surgical excision. © 2015 by anais brasileiros de dermatologia.