Document 0916 DOCN M95A0916 TI Histopathologic spectrum of AIDS-associated lesions in Maharaj Nakorn Chiang Mai Hospital. DT 9510 AU Bhoopat L; Thamprasert K; Chaiwun B; Attasiri C; Vithayasai P; Chaimongkol B; Limpichankit T; Sirisanthana V; Department of Pathology, Faculty of Medicine, Chiang Mai; University, Thailand. SO Asian Pac J Allergy Immunol. 1994 Dec;12(2):95-104. Unique Identifier : AIDSLINE MED/95336558 AB The histopathological alterations in various organs and the presence of AIDS-associated lesions were studied in 86 biopsy and 29 necropsy specimens of AIDS patients. The most common cancer seen in this study were malignant lymphomas (4% of cases) with development of extensive extranodal lymphomatous involvement from the outset. Although a preponderance of high grade B-cell pathologic subtypes is found in AIDS-associated lymphoma, we also report the first case of T-lymphoblastic lymphoma with a picture of acute lymphoblastic leukemia (T-ALL). Tuberculosis (34% of cases) was the most common opportunistic infection presented in tissue sections, and the majority of tissue biopsies revealed poorly organized granulomas and extensive necrosis with numerous bacilli. Penicilliosis (20% of cases) appeared to be the most common cutaneous lesion with multiple organ involvement. The involved organs showed a partially anergic tissue reaction characterized by poorly formed granulomas with diffuse infiltrate of fungi-laden macrophages and lymphoid cell depletion. This organism has to be distinguished from Histoplasma capsulatum and other yeast-form fungi. Co-existing cytomegalovirus and P. carinii infections were the predominant findings in lung necropsy specimens from pediatric patients who died from AIDS. A major pathologic feature in this group was diffuse alveolar damage stage II to III with heavy loads of organism and extensive lymphoplasmacytic infiltration. DE Acquired Immunodeficiency Syndrome/*COMPLICATIONS/EPIDEMIOLOGY Adult AIDS-Related Opportunistic Infections/ETIOLOGY/IMMUNOLOGY/ *PATHOLOGY Cytomegalovirus Infections/ETIOLOGY/IMMUNOLOGY/PATHOLOGY Hospitals Human Immunophenotyping Infant Leukemia, T-Cell, Acute/ETIOLOGY/IMMUNOLOGY/*PATHOLOGY Lung/IMMUNOLOGY/PATHOLOGY Lung Diseases, Fungal/ETIOLOGY/IMMUNOLOGY/PATHOLOGY Lymph Nodes/IMMUNOLOGY/PATHOLOGY Lymphocyte Subsets/IMMUNOLOGY Lymphoma, AIDS-Related/ETIOLOGY/IMMUNOLOGY/*PATHOLOGY Penicillium Pneumocystis carinii Infections/ETIOLOGY/IMMUNOLOGY/PATHOLOGY Thailand/EPIDEMIOLOGY Tuberculosis, Pulmonary/ETIOLOGY/IMMUNOLOGY/PATHOLOGY JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).