title: A case of T/null anaplastic large cell lymphoma arising in lung.
abstract: Anaplastic large cell lymphoma (ALCL) is a rare non-Hodgkin, T-cell lymphoma, representing only 2-3% of all lymphoid neoplasm's in adults according to World Health Organization (WHO). CD30 antigen-positive, large neoplastic cells characterize ALCL. We present here a 46-year-old male with pulmonary ALCL previously diagnosed with Hodgkin disease. Microscopically, atypical bi-and multinucleated cells with frequent mitoses were present. The neoplastic cells were large and had clear cytoplasm, large vesicular nuclei, and prominent nucleoli. Immunophenotypic analysis revealed LCA, vimentin and CD30 positivity. ALK immunostaining was negative. Immunohistochemical profile was consistent with ALK negative ALCL. The progression of Hodgkin lymphoma to aggressive non-Hodgkin lymphoma (ALCL in this case) is well known entity. After the diagnosis was established, our patient immediately had been referred to the Department of Hematology in order to get appropriate chemotherapy, necessary in such cases.
authors.affiliation: Department of Thoracic Surgery, University of Sarajevo, Clinics Center, Sarajevo, Bosnia and Herzegovina.
authors.forename: Zenaida
authors.initials: Z
authors.lastname: Cerimagić
authors.forename: Safet
authors.initials: S
authors.lastname: Guska
authors.forename: Bedrudin
authors.initials: B
authors.lastname: Banjanović
mesh_terms: D006689:Hodgkin Disease / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D008175:Lung Neoplasms / Q000378:metabolism / Q000473:pathology*; D016403:Lymphoma, Large B-Cell, Diffuse / Q000378:metabolism / Q000473:pathology*; D008297:Male; D008479:Mediastinal Neoplasms / Q000378:metabolism / Q000473:pathology; D008875:Middle Aged; D016609:Neoplasms, Second Primary / Q000378:metabolism / Q000473:pathology*; D014057:Tomography, X-Ray Computed