Document 0288 DOCN M9550288 TI Fine needle aspiration cytology of mycobacterial spindle cell pseudotumor. A case report. DT 9505 AU Corkill M; Stephens J; Bitter M; Department of Pathology, University of Colorado Health Sciences; Center, Denver. SO Acta Cytol. 1995 Jan-Feb;39(1):125-8. Unique Identifier : AIDSLINE MED/95149614 AB We report a case of mycobacterial spindle cell pseudotumor (MSP) in a lymph node from an acquired immunodeficiency syndrome patient diagnosed by fine needle aspiration (FNA). The FNA cytology was characterized by spindle cell proliferation without the typical foamy histiocytes usually seen in mycobacterial infections and mimicked a mesenchymal neoplasm, particularly Kaposi's sarcoma. This case illustrates the importance of including MSP in the differential diagnosis of lymph node FNAs from immunocompromised patients, particularly those that show spindle cell proliferation suspicious for Kaposi's sarcoma or another mesenchymal neoplasm. DE Acquired Immunodeficiency Syndrome/COMPLICATIONS Adult Biopsy, Needle Case Report Diagnosis, Differential Human Lymph Nodes/MICROBIOLOGY/PATHOLOGY Lymphatic Diseases/COMPLICATIONS/*MICROBIOLOGY/*PATHOLOGY Male Mycobacterium avium Complex/ISOLATION & PURIF Mycobacterium avium-intracellulare Infection/COMPLICATIONS/ DIAGNOSIS/*PATHOLOGY Sarcoma, Kaposi's/DIAGNOSIS/ETIOLOGY/PATHOLOGY JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).