Organizing pneumonia

Case contributed by Heather Pascoe
Diagnosis possible


Left sided chest pain. Presented with dizziness and chest pain. Due for CT Chest as outpatient given nodules on CXR and need to rule out tuberculosis prior to starting on Crohn disease medication.

Patient Data

Age: 50 years
Gender: Male

Multiple lobulated opacities are seen bilaterally, most easily appreciated in the left apex and along the left side of the chest, but also projecting through the liver shadow. Further assessed with CT is recommended as the differential includes multifocal infection, malignancy, and even pulmonary embolism.


No pulmonary embolus. There are multiple peripheral airspace opacities involving the left upper lobe and both lower lobes. The largest region involves the left lower lobe medially. No cavitation. No pleural effusions. No mediastinal, hilar or axillary lymphadenopathy.

Case Discussion

Appearances may represent infection of organizing pneumonia. Follow up imaging was recommended but has not been performed.

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