Man with Chest Pain, Dyspnea, and Hemoptysis – Let’s Diagnose

A 53-year-old man presents to emergency room with chest pain, dyspnea, and hemoptysis. The patient mentions that he is feeling fatigued and is experiencing joint pain all over his body. When asked about social history, the patient responds that he is a nonsmoker, has no history of illicit drug use, and has been gainfully employed as a metal processing worker in a foundry for over 25 years. Radiological exam / radiograph revealed a solitary, cavitary pulmonary nodule.

Is it blastomycosis, granulomatosis with polyangiitis, nitrogen dioxide poisoning, or microscopic polyangiitis?

Can you diagnose the patient? Use the Differential Builder in VisualDx to help you.

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