Figure 1.

Chest radiography and computed tomography images showing bilateral upper lung volume loss with pleural thickening. (A, B) Before haematopoietic transplantation. No abnormal findings are observed. (C, D) Four years after haematopoietic stem cell transplantation (HSCT). Bilateral pleural thickening of the pulmonary apex is observed. (E, F) Five years after HSCT. Air space persists in the thoracic cavity. Full lung expansion cannot be achieved due to repeated pneumothorax and lung contraction. (G, H) Eight years after HSCT (1 week before death). Progressive lung contraction and mediastinal emphysema is observed.