Successfully treated acute lymphoblastic leukemia associated with craniopharyngioma

The authors report a 2-year-old boy with acute lymphoblastic leukemia (ALL) associated with craniopharyngioma. To our knowledge, this is the first such report. Magnetic resonance imaging showed a suprasellar tumor, an apparent cystic lesion, whereas cerebral computed tomography confirmed that the tumor exhibited calcification. Without surgical intervention for the suprasellar tumor, we initiated chemotherapy for ALL. After 1 year of chemotherapy, complete remission was achieved, and partial resection and radiation therapy were performed on the suprasellar tumor. At 4 years after completing leukemia chemotherapy, the patient remains in complete ALL remission and has had no recurrence of craniopharyngioma.