Primary cutaneous B-cell lymphoma.
A 63-year-old woman presented with a single plaque on her left earlobe that was shown to be a B-cell lymphoma on histopathologic examination. Immunohistochemical studies on the paraffin-embedded tissue and flow cytometry of fresh tissue helped characterize the neoplasm. She had no other systemic involvement and a diagnosis of primary cutaneous B-cell lymphoma was made. This neoplasm has, in general, a good prognosis with excellent response to radiation therapy, polychemotherapy, or both.
Brooke Army Medical Center, Fort Sam Houston, Texas, USA.
A S
AS
Clayton
M
M
McCollough
C L
CL
Barekman
D003937:Diagnosis, Differential; D004431:Ear, External; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D016393:Lymphoma, B-Cell / Q000175:diagnosis* / Q000473:pathology; D008875:Middle Aged; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000473:pathology