RT Book, Section A1 Fitzpatrick, Meghan E. A1 Prendergast, Niall T. A1 Rivera-Lebron, Belinda A2 Papadakis, Maxine A. A2 McPhee, Stephen J. A2 Rabow, Michael W. A2 McQuaid, Kenneth R. SR Print(0) ID 1186012752 T1 Pulmonary Infiltrates in the Immunocompromised Patients T2 Current Medical Diagnosis & Treatment 2022 YR 2022 FD 2022 PB McGraw-Hill Education PP New York, NY SN 9781264269389 LK accessmedicine.mhmedical.com/content.aspx?aid=1186012752 RD 2024/04/19 AB Pulmonary infiltrates in immunocompromised patients (patients with HIV disease, absolute neutrophil counts less than 1000/mcL [less than 1.0 × 109/L], current or recent exposure to myelosuppressive or immunosuppressive medications, or those currently taking more than 20 mg/day of prednisone) may arise from infectious or noninfectious causes. Infection may be due to bacterial, mycobacterial, fungal, protozoal, helminthic, or viral pathogens. Noninfectious processes, such as pulmonary edema, alveolar hemorrhage, medication reactions, pulmonary thromboembolic disease, malignancy, and radiation pneumonitis, may mimic infection.