title: Lymphoepithelioid cell lymphoma (Lennert's lymphoma). Report of a case with fine needle aspiration cytology.
abstract: BACKGROUND
  Lymphoepithelioid cell lymphoma (LCL) is a rare morphologic variant of peripheral T-cell lymphoma. Although their histopathologic and immunohistochemical findings are well known, the cytopathologic features have not been well documented. This report describes the fine needle aspiration cytology (FNAC) findings of a case of LCL.
  
  
  METHODS
  A 75-year-old woman presented with cervical, supraclavicular, axillary and mediastinal lymphadenopathy. FNAC of a cervical lymph node was performed. The smears contained a polymorphous infiltrate formed by abundant histiocytes disposed singly or in clusters, small and medium-sized to large atypical lymphoid cells and reactive cells, including eosinophils and plasma cells. Isolated capillary-sized vessels also were observed. Histopathologic and immunohistochemical examination confirmed the diagnosis of Lennert's lymphoma.
  
  
  CONCLUSIONS
  Although histopathologic and immunohistochemical studies were required for a definitive diagnosis, the findings of FNAC in this case appeared distinctive and suggested the possibility of LCL.
authors.affiliation: Departamento de Anatomía Patológica, Hospital General, Paseo de Santa Bárbara, s/n. Soria-42002, Spain.
authors.forename: Agustín
authors.initials: A
authors.lastname: Vaíllo Vinagre
authors.forename: Antonia
authors.initials: A
authors.lastname: Gutiérrez Martín
authors.forename: Andrés
authors.initials: A
authors.lastname: Pérez Barrios
authors.forename: Nuria
authors.initials: N
authors.lastname: Alberti Masgrau
authors.forename: Juan Manuel
authors.initials: JM
authors.lastname: Ruiz Liso
mesh_terms: D000368:Aged; D000954:Antigens, Surface / Q000378:metabolism; D014408:Biomarkers, Tumor / Q000378:metabolism; D044963:Biopsy, Fine-Needle; D048429:Cell Size / Q000502:physiology; D018984:Epitopes, T-Lymphocyte / Q000276:immunology; D005260:Female; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology*; D008206:Lymphatic Diseases / Q000209:etiology / Q000473:pathology*; D008214:Lymphocytes / Q000276:immunology / Q000473:pathology; D016399:Lymphoma, T-Cell / Q000473:pathology*
chemical_list: D000954:Antigens, Surface; D014408:Biomarkers, Tumor; D018984:Epitopes, T-Lymphocyte