Fig. 2. Anterior mediastinal widening on routine follow-up chest X-ray after 38 months of allo-HSCT for AML (A). Contrast-enhanced computed tomography showed large enhancing homogeneous mass (8.1×5.6 cm) involving anterior mediastinum, pericardium, and mediastinal pleura (B). Mediastinal mass biopsy showed the leukemic cells of mediastinal mass revealed the CD117 positivity (C, original magnification ×200, CD117 immunohistochemical stain).

Clin Pediatr Hematol Oncol 2023;30:70-4

© 2023 Clin Pediatr Hematol Oncol