FDG PET/CT in Immune-Related Arthritis in a Patient Treated With Nivolumab.

Bayat, Mohadeseh; Doroudinia, Abtin; Karam, Mehrdad Bakhshayesh; Mehrian, Payam · Clin Nucl Med · 2023

case_report · Level V

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Abstract

Immune checkpoint inhibitors are a new and different treatment option in many of solid tumors, but with many recognized immune-related adverse side effects. In this interesting image, we are presenting a 56-year-old woman with primary malignant melanoma who underwent nivolumab therapy for 5 months, and a posttreatment whole-body FDG PET/CT scan for treatment response evaluation demonstrated increased metabolic activity in the entire major joints of the upper and lower extremities. This was a new finding compared with previous FDG PET/CT scan and was interpreted as an immune-related arthritis complication.

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