Isolated Cutaneous Chronic Lymphocytic Leukemia: A Case Report.

Skin lesions in chronic lymphocytic leukemia (CLL) have been reported in between 4% and 20% of patients with CLL and are a rare entity compared with T-cell leukemia. They can present mainly as leukemic cutis or, frequently, as secondary lesions such like urticaria, itching, pyoderma gangrenosum, cutaneous vasculitis, Sweet's syndrome, and erythroderma. We report on an adult patient who developed a skin lesion of forearms and hands, leading to the discovery of isolated cutaneous CLL after two biopsies. Isolated CLL cutaneous location is very rare and may be diagnosed late, as in the case of our patient. A better knowledge of the course of the illness and rapid diagnosis of this CLL cutis leukemia will enhance the therapeutic efficacy of the disease.