ATS GUIDELINES Bundle

Sarcoidosis

American Thoracic Society Quick-Reference GUIDELINES Apps

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12 Diagnosis Table 3. Key Infectious and Noninfectious Differential Diagnoses for Granulomatous Lesions within Commonly Biopsied Sites Exposures Hypersensitivity pneumonitis a X X Hot tub lung syndrome (MAC exposure with hypersensitivity features) X X Pneumoconiosis (such as beryllium, titanium, aluminum, zirconium, cobalt, and others) X X X Drug-induced granulomatous disease (including but not limited to IFN, checkpoint inhibitor, anti-TNF, and/or biologic therapies) a X X X X X Foreign body granulomatosis (such as talc aspirate or injected, tattoo ink) a X X X Steatosis (lipogranulomas) X Idiopathic Sarcoidosis X X X X X Necrotizing sarcoid granulomatosis X X Histiocytic necrotizing lymphadenitis (Kikuchi's disease) X GLUS X X X X Bronchocentric granulomatosis X a More commonly found alternative diagnoses for granulomatous disease in U.S. populations. e differential diagnosis should be prioritized on the basis of the individual's clinical history and presentation.

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