Russian Scientific Center of Roentgenoradiology of the Ministry of Healthcare of the Russian Federation

The development of secondary tumors is a rare but well-known late effect of radiation therapy of lesions of the central nervous system. At the same time, malignant gliomas most often occur. This article presents a rare clinical case of secondary anaplastic astrocytoma in a child who received chemoradia-tion therapy for medulloblastoma after surgical treatment. Purpose. Demonstration of a rare occurrence of anaplastic astrocytoma after surgical and chemoradiation treatment of medulloblastoma.