multisystem disease characterized by non-caseating granulomas etiology is unknown Presentation Lungs: dry, non-productive cough, dyspnea, chest pain Eyes: blurry vision, conjunctivitis, eye pain, uveitis (common), iritis Skin: erythema nodosum, papules, macules, nodules, lupus pernio Heart: arrhythmias, cardiomyopathy Diagnosis diagnosis of exclusion initial labs: CBC, serum chemistry (ALT, AST, ALP, BUN, Cr, Ca, other electrolytes), urinalysis, 24 h urine excretion of calcium, CRP, ESR, tuberculin skin test imaging: CXR, ECG pulmonary function tests: spirometry, diffusion capacity of carbon monoxide (DLCO)- single breath biopsy (skin, lymph nodes or conjunctiva) of affected area, and if no suitable area is present then bronchoscopy with transbronchial biopsy. Management Corticosteroids are the mainstay therapy when required.…