A 32-year-old African American woman with no significant past medical history has been referred to a pulmonologist; she presents with a 2-month history of progressive dyspnea. She notes associated low-grade fever, malaise, joint pain, and swollen neck glands. She denies a history of travel, cigarette smoking, drug use, or sexually transmitted diseases (she has not been sexually active in the past year). All other reviews of systems are negative. Her physical exam reveals tender nodular formations on her anterior lower extremities, parotid enlargement, hepatosplenomegaly, and cervical lymphadenopathy. Her vital signs, heart, and lungs are unremarkable. Diagnostic testing reveals leukopenia, increased ESR, hypercalcemia, hypercalciuria, elevations of serum ACE levels, and bilateral hilar adenopathy with diffuse reticular infiltrates. ANCA, ANA, and rheumatoid factor tests are negative. Histological assessment confirms the presence of noncaseating granulomas. Finish atten Question What is the most likely diagnosis?
