# Organizing Pneumonia
Imaging notable for patchy consolidation concerning for organizing pneumonia. Organizing pneumonias can be unilateral or bilateral, are often peripherally located, and may have small nodules or associated atoll sign (low sensitivity, high specificity). Cryptogenic (primary) organizing pneumonia is characterized by excessive granulation tissue proliferation, and is often treated with steroids. Secondary organizing pneumonia may be associated with meds/drugs, infections, autoimmune conditions, malignancy,mixed cryoglobulinemia, hypersensitivity pneumonitis, CVID, IBD, radiation and transplantation.