Saddle pulmonary embolus and bronchiolitis obliterans with organizing pneumonia develop simultaneously after first cyclophosphamide, methotrexate, 5FU chemotherapy for breast cancer

Chest x-ray after intubation and pulmonary artery catheter insertion, showed endotracheal tube and pulmonary artery catheter in good place with bilateral air space.

Spiral CT scan of the chest showed a non occlusive saddle pulmonary embolism.

Spiral CT scan of the chest showed multiple bilateral pulmonary emboli and bilateral air space.

Arrows show loose organizing granulation tissue in small airways consistent with an organizing pneumonia pattern of cryptogenic organizing pneumonia or bronchiolitis obliterans with organizing pneumonia.