The spectrum of presentations of cryptogenic organizing pneumonia in high resolution computed tomography.

Background: Various radiologic patterns of cryptogenic organizing pneumonia (COP) in X-rays have been reported for more than 20 years, and later, in computed tomography scans. The aim of the present study was to describe the spectrum of radiologic findings on high resolution computed tomography (HRCT) scans in patients with COP.

Material/methods: HRCT scans of 31 sequential patients (mean age: 54.