Q; You received following CT scan report on a patient
"The peripheral opacities are present in the form of triangles, with the base of the triangle along the pleural surface and the tip of the triangle toward the mediastinum"
What would be your diagnosis in patient with cough, fever, dyspnea, hemoptysis and hypoxia?
Answer: Bronchiolitis Obliterans Organizing Pneumonia (BOOP)
The chest computed tomographic scan shows findings similar to the chest radiograph in BOOP, with bilateral areas of consolidation and ground glass opacities, usually with a peripheral location (figure 2B). Not always but sometimes the peripheral opacities are in the form of triangles, with the base of the triangle along the pleural surface and the tip of the triangle toward the mediastinum (figure 2C).
Reference: click to get abstract
Bronchiolitis obliterans with organizing pneumonia: outcome. - Thorax, 1995;50(suppl 1):S59-S64
