Case of Adult Metastatic Medulloblastoma Demonstrated on 18F-DOPA PET/CT

Abstract

18 F-DOPA is a promising radiotracer used for both staging and restaging of primary brain tumors based on increased transport via the Ltype large neutral amino acid transport system in tumor cells. Adult medulloblastoma is extremely rare. We present a case of 25-year-old man with posterior fossa medulloblastoma treated with surgery followed by chemotherapy and radiotherapy 5 years back, which later developed metastasis to left cerebral lobe treated with gamma knife followed by surgical debulking. Recent 18 F-DOPA PET/CT demonstrates recurrence and disease progression on follow-up scan. 18 F-DOPA PET/CT is extremely useful for characterizing brain tumors, response assessment, and prognosis.

Magnetic Resonance Imaging (MRI) and Positron Emission Tomography (PET)/Computed Tomography Features of Atypical Teratoid/Rhabdoid Tumors: Case Series and Review

“…6,7 For instance, PET/CT has been applied in characterizing medulloblastoma, response assessment, and prognosis evaluation. 8 However, the PET/CT features of atypical teratoid/rhabdoid tumors were seldomly reported. Our study investigated the advances in neuroimaging features of pediatric patients with atypical teratoid/rhabdoid tumors.…”