Fever of unknown origin and isolated noncaseating granuloma of the marrow: Could this be sarcoidosis?
Fever of unknown origin (FUO) is both a clinical and a diagnostic challenge. Furthermore, an FUO case with isolated marrow noncaseating granuloma can further confound diagnosis. However, these two findings together may help narrow down the pathological possibilities. This article presents a case report of FUO and lymphopenia for 2 months. Multiple studies to evaluate infectious etiology were unremarkable. Bone marrow biopsy revealed isolated bone marrow granuloma, suggestive of sarcoid. The patient responded well to glucocorticosteroids with resolution of lymphopenia. Sarcoid should enter the differential of lymphopenia and FUO even without lymphadenopathy or abnormal chest radiography. This article provides a of review of CD4 lymphopenia, noncaseating granuloma of the marrow, and sarcoidosis.
Keywords: BONE MARROW GRANULOMA; CD4 LYMPHOPENIA; FEVER OF KNOWN ORIGIN; NONCASEATING GRANULOMA; SARCOID
Document Type: Case Report
Affiliations: 1: Departments of Internal Medicine and Emergency Medicine, State University of New York Downstate Medical Center and Kings County Hospital Center Brooklyn, New York 2: Division of Allergy and Immunology, University of South Florida College of Medicine and James A. Haley VA Hospital, Tampa, Florida 3: M.D./Ph.D. Program, Loyola University Stritch School of Medicine, Maywood, Illinois
Publication date: March 1, 2007
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