Necrotizing Sarcoid Granulomatosis Mimicking Lung Malignancy: MDCT, PET-CT and Pathologic Findings

Iran J Radiol. 2012 Mar;9(1):37-41. doi: 10.5812/iranjradiol.6572. Epub 2012 Mar 25.


Necrotizing sarcoid granulomatosis (NSG) is a rare disease which is classified in the spectrum of pulmonary angiitis and granulomatosis. It is a variant of sarcoidosis and differs from it histologically. Diagnosis is based on the pathological features, but radiology may help in the differential diagnosis. It is characterized by alveolar infiltrates or parenchymal nodules in multidetector computed tomography (MDCT). We report a case of a 50-year-old man with the diagnosis of NSG mimicking lung malignancy. Radiological and pathological findings and also the destructive course of the disease will be discussed.

Keywords: Lung Neoplasms; Positron-Emission Tomography; Tomography; X-Ray Computed.

Publication types

  • Case Reports