Pneumocystis carinii pneumonia: role of high resolution computed tomography.

Pneumocystis carinii (PC) is a common opportunistic infection in renal transplant recipients and requires an early diagnosis for its successful treatment. For its definitive diagnosis PC needs to be demonstrated in bronchoalveolar lavage (BAL) fluid. At times BAL may not be possible or get delayed. In such conditions typical appearances seen on high resolution CT of the chest help in early diagnosis of PC pneumonia (PCP). This easily performed procedure helped in early diagnosis of PCP in two patients.