An unusual pulmonary complication of cytomegalovirus infection in a renal transplant recipient

Bronchiolitis obliterans organizing pneumonia (BOOP) is a clinicopathological entity occurring in the clinical setting of interstitial pneumonia [1]. Occurrence of BOOP in the post-transplant period has been well described in lung [2] or bone marrow transplantation [3] but remains rare in renal transplantation [4]. We report here, to the best of our knowledge, the first case of BOOP secondary to CMV infection in a renal transplant recipient. Intravenous (IV) ganciclovir was effective in eradicating the virus but ineffective in improving the pulmonary status of the patient. After prednisone therapy, the patient’s pulmonary symptoms and radiographic findings rapidly improved.