Abstract

Granulomatosis with polyangiitis (GPA) formerly Wegener’s Granulomatosis, is characterized by granulomatosis necrotizing vasculitis that primarily involves upper respiratory tracts, lung and kidney. There are two types of disease, ‘limited’ and ‘generalized’. Radiological findings are seen as multiple bilateral nodules that change from a few millimeters to centimeters in size or parenchymal infiltrations, cavitations or nodules presented with cavitations. These nodules sometimes can be confused with malignancy in terms of the size and appearance. In this study, we discussed the role of positron emission tomography/computerized tomography (PET/CT) in the initial evaluation of patients with the diagnosis of GPA mimicking malignancy.

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