BACKGROUND: Aneurysmal bone cysts (ABCs) are benign vascular lesions commonly affecting the pediatric population. OBJECTIVE: To assess magnetic resonance imaging (MRI) features of ABCs after percutaneous cryoablation. MATERIALS AND METHODS: A retrospective review of the hospital's electronic medical record database was conducted to identify patients who underwent percutaneous image-guided cryoablation for aneurysmal bone cysts between March 2014 and April 2024. Patients were excluded if they lacked pre- or post-treatment MRI, underwent surgical curettage and bone grafting between cryoablation treatments, or received adjunctive therapies such as sclerotherapy or bone grafting. Demographic data and pre- and post-cryoablation MRI characteristics of the lesions were collected and analyzed. RESULTS: We retrospectively analyzed 20 patients (mean age = 14.6 years). The average ABC volume decreased from 83 cm CONCLUSION: These findings suggest MRI is a valuable tool for monitoring ABC response to cryotherapy, guiding future treatment protocols.