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The Korean Journal of Cytopathology 1997;8(1): 87-92.
Fine Needle Aspiration Cytologic Findings of Inflammatory Pseudotumor of the Lymph Node .
So Young Park, Gyung Yub Gong, Joo Ryung Huh, Eun Sil Yu, In Chul Lee, On Ja Kim
Department of Diagnostic Pathology, Asan Medical Center,College of Medicine, University of Ulsan.
Reports on the cytologic or histopathologic findings of inflammatory pseudotumors are relatively infrequent and most of them have dealt with those involving the lung, liver, genitourinary tract, alimentary tract, spleen, mediastinum, retroperitoneum, etc. Moreover there have not been any cytologic studies of those involving lymph nodes. We present fine needle aspiration cytologic features of inflammatory pseudotumor occurring in a lymph node in a 64 year-old man. The aspirate consisted of proliferating spindle cells and admixed histiocytes, fibroblasts, lymphocytes, and plasma cells. Histiocytes were present either singly or in loosely cohesive small clusters. A few multinucleated giant cells were present as well. However, tuberculosis could be excluded by the absence of typical granuloma, caseation necrosis, or characteristic mixed spindle and inflammatory cell components. Other benign and malignant lymphadenopathies could also be differentiated based on cytologic findings.
Key Words: Inflammatory pseudotumor; Lymph node; Fine needle aspiration