Definitive Sclerosing Intensity Modulated Radiotherapy in A Child with Recurrent Aneurysmal Bone Cyst- A Clinical Case from ourPractice

Abstract

Aneurysmal bone cysts (ABCs) are rarely diagnosed aggressive benign bone tumors. They are mainly diagnosed in children and adolescents in the long bones of the limbs, but in 12 %-30% are localized in the spine. Since the value of external beam radiotherapy (EBRT) for ABC has not been well defined, we present our observations and treatment outcome after one year from the definitive intensity modulated radiotherapy (IMRT) up to 30 Gy. for recurrent spine ABC in adolescent age. We present in dynamics the MR images of ABC after 3 months, after 6 months and after 1 year of the radiation treatment, analyzing the achieved tumor reducing and sclerosing effect. Our observations lead to the conclusion, that IMRT is an effective sclerosing treatment method for relapsed
or inoperable disease, achieving not only a symptomatic pain-relieving effect, but also significant reduction of the bone tumor lesion.