title: Nasal-type NK/T-cell lymphoma: a case report.
abstract: Extranodal NK/T-cell lymphoma represents less than 1% of all lymphomas, but is more common in Asia and South America. We present a 67-year-old female with a 10-month history of four reddish-blue firm and painful nodules in the parietal region of the head, ranging in size from 1 to 5 cm. Two nodules were taken for biopsy, which showed atypical lymphoid cells with angiocentric growth pattern. The immunophenotype of the tumor cells was CD45RO +, CD56 +, CD3 + (epsilon chain), CD20-, consistent with the diagnosis of NK/T-cell lymphoma. NK/T-cell lymphomas are rare and the optimal treatment has not been clearly established.
authors.affiliation: Nis Clinical Centre, Clinic of Dermatovenereology, Bul. Z. Djindjića 48, 18 000 Nis, Serbia.
authors.forename: Jelica
authors.initials: J
authors.lastname: Tiodorović
authors.forename: Viktor
authors.initials: V
authors.lastname: Lazarević
authors.forename: Ivana
authors.initials: I
authors.lastname: Binić
authors.forename: Danica
authors.initials: D
authors.lastname: Tiodorović-Zivković
mesh_terms: D000368:Aged; D005260:Female; D006258:Head and Neck Neoplasms / Q000473:pathology*; D006801:Humans; D016130:Immunophenotyping; D054391:Lymphoma, Extranodal NK-T-Cell / Q000473:pathology*; D012535:Scalp / Q000473:pathology*; D012878:Skin Neoplasms / Q000473:pathology*