Sarcoid-Like Reaction Mimicking Disease Progression Associated with Nivolumab in a Case with Malignant Mesothelioma: Is There a Solution for This Dilemma?

Abstract

Sarcoid like reaction is an interesting entity in cases treated by checkpoint inhibitor treatment and suggests a good response to therapy. Here a case with granulomatous reaction has been reported in a case with malignant mesothelioma treated by nivolumab. This entity may simulate disease progression by imaging modalities especially in PET/CT.