Cytomegalovirus pneumonia in transplant patients: CT findings.

OBJECTIVE

Our goal was to assess the CT findings of cytomegalovirus (CMV) pneumonia in transplant patients.

MATERIALS AND METHODS

The study included 10 transplant patients who had chest CT scan and pathologically proven isolated pulmonary CMV infection. Five patients had bone marrow transplant and five had solid organ transplant. The CT scans were retrospectively reviewed for pattern and distribution of disease and the CT findings compared with the findings on open lung biopsy (n = 9) and autopsy (n = 1).

RESULTS

Nine of 10 patients had parenchymal abnormalities apparent at CT and 1 had normal CT scans. The findings in the nine patients included small nodules (n = 6), consolidation (n = 4), ground-glass attenuation (n = 4), and irregular lines (n = 1). The nodules had a bilateral and symmetric distribution and involved all lung zones. The consolidation was most marked in the lower lung zones.

CONCLUSION

The CT findings of CMV pneumonia in transplant patients are heterogeneous. The most common patterns include small nodules and areas of consolidation.