title: Fine-needle aspiration cytology of extranodal natural killer/T-cell lymphoma.
abstract: Extranodal NK/T-cell lymphoma, nasal type, is a predominantly extranodal lymphoma characterized histologically by prominent necrosis, angiocentric growth, and vascular destruction. Only one report describing its fine-needle aspiration (FNA) cytologic features is available and shows highly unusual findings for a lymphoma. The present case concerns a 58-yr-old patient that presented with a soft tissue mass of the thigh in addition to an ulcerative lesion of the palate and nodular hepatic and splenic lesions. FNA cytology of the thigh tumor was interpreted as a malignant mesenchymal lesion (sarcoma). The subsequent pathologic study revealed an NK/T-cell lymphoma. Our findings are very similar to those previously reported. They were highly unusual for a lymphoma and consisted of polymorphic, round to spindle neoplastic cells distributed in irregular aggregates, and single cells. No significant number of lymphoglandular bodies were present.
authors.affiliation: Department of Pathology, University Hospital, Guadalajara, University of Alcalá de Henares, Madrid, Spain. jjheffernan@yahoo.com
authors.forename: José A
authors.initials: JA
authors.lastname: Jiménez-Heffernan
authors.forename: Pilar
authors.initials: P
authors.lastname: González-Peramato
authors.forename: Cristian
authors.initials: C
authors.lastname: Perna
authors.forename: Javier
authors.initials: J
authors.lastname: Alvarez-Ferreira
authors.forename: Pilar
authors.initials: P
authors.lastname: López-Ferrer
authors.forename: José M
authors.initials: JM
authors.lastname: Viguer
mesh_terms: D001707:Biopsy, Needle; D003937:Diagnosis, Differential; D017809:Fatal Outcome; D006801:Humans; D007694:Killer Cells, Natural / Q000473:pathology*; D016131:Lymphocyte Subsets / Q000473:pathology*; D016411:Lymphoma, T-Cell, Peripheral / Q000473:pathology*; D008297:Male; D012509:Sarcoma / Q000473:pathology; D012983:Soft Tissue Neoplasms / Q000473:pathology*