Subpleural cystic change in a patient with multiple rib exostoses

A 75-year-old man, with hereditary multiple exostoses, had a positron emission tomography (PET)-CT scan for follow-up of an excised chondrosarcoma. Incidentally, he was found to have widespread subpleural cystic change (figure 1A and B) and a cystic right lower lobe lesion (figure 2) adjacent to a rib exostosis. He was referred to the urgent respiratory clinic on the basis of these unusual subpleural cystic findings and concern that the cystic...