Abnormal Positron Emission Tomographic Scan Due to Undiagnosed Adrenal HistoplasmosisGelfand, Michael S. MD*; Cleveland, Kerry O. MD*; Baskin, Reed C. MD†Infectious Diseases in Clinical Practice: September 2011 - Volume 19 - Issue 5 - p 365-366 doi: 10.1097/IPC.0b013e318209973c Case Reports Abstract Author Information Infection with Histoplasma capsulatum may result in clinical signs and symptoms consistent with malignancy or infection. Microbiologic and immunologic diagnostic tests for histoplasmosis may yield false-negative results and lead to additional testing for the malignancies it may mimic. We report a patient with negative initial study results for infection who was found on evaluation to have bilateral adrenomegaly and adrenal uptake on 18F-fluorodeoxyglucose positron emission tomography suggestive of a neoplastic process. On further testing, the patient was found to have adrenal histoplasmosis. From the Divisions of *Infectious Diseases and †Hematology/Oncology, Department of Medicine, University of Tennessee Health Science Center, Memphis, TN. Correspondence to: Kerry O. Cleveland, MD, Suite 460, 1325 Eastmoreland Ave, Memphis, TN 38104. E-mail: firstname.lastname@example.org. The authors have no funding or conflicts of interest to disclose. © 2011 Lippincott Williams & Wilkins, Inc.