Nocardia infection with adrenal gland abscess mimicking metastatic lung cancer on fdg pet/ct

Abstract

We present FDG PET/CT findings of a human immunodeficiency virus–positive patient suspicious for lung cancer with a solitary metastasis to the adrenal gland. Wedge resection of the pulmonary nodules revealed Nocardia infection and a repeat FDG PET/CT imaging after the antibiotic treatment demonstrated complete metabolic response of the adrenal lesion and pulmonary nodules. It should be kept in mind that nocardiosis may present with FDG-avid lesions masquerading as malignancies in immunocompromised patients