“…The differential diagnosis of MPC include pulmonary edema, pneumonia, atypical infections, recurrent alveolar hemorrhage, hypersensitivity pneumonitis, vasculitis, sarcoidosis, chronic eosinophilic pneumonia, pulmonary metastasis (osteogenic sarcoma, chondrosarcoma, thyroid malignancies), miliary tuberculosis. histoplasmosis, fungal infections, varicella pneumonia, occupational lung disease (silicosis, coal workers' pneumoconiosis, siderosis, stannosis, and baritosis), chronic hemorrhagic conditions, rheumatic mitral stenosis, and pulmonary alveolar microlithiasis [11][12][13]. As these patients are highly immunosuppressed, infection should always be excluded.…”