Bone Scan, PET-CT, and MRI in Disseminated Coccidioidomycosis

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Abstract

Coccidioidomycosis (valley fever) is a systemic fungal infection resulting from inhalation of the Coccidioides immitis or posadasii spores. In many cases, infection causes a self-limited community-acquired pneumonia; however, in patients with risk factors, such as immunosuppression or African or Pacific Island ancestry, significant morbidity and mortality from disseminated disease may occur. Presented here are comparative images using 99mTc-MDP bone scan, 18F-FDG PET/CT, and MRI. Each demonstrates particular strengths, which aid in assessing the extent of systemic involvement of a biopsy-proven case of disseminated coccidioidomycosis.

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