Pneumocystis jirovecii pneumonia is a common pulmonary infection in severely immunocompromised patients. Our patient was receiving treatment with Neoral, Imuran, Medrol and Mestinon. Chest radiographs can be normal in up to 18% of patients. Typical radiographic manifestations on CT are bilateral, perihilar reticular and poorly defined ground-glass opacities with superimposition of lines, which can be associated with interlobular septal thickening [14] . As described by Rossi et al. histological features contributing to the ground-glass attenuation include the foamy nature of the alveolar exudates and thickening of the alveolar walls by oedema and cellular infiltrates [2] .