Radiology Key

Chondrosarcoma Updated by Vincent J. Lee and Deborah A. Frassica BACKGROUND Chondrosarcoma accounts for what % of primary bone tumors? Chondrosarcoma accounts for ~30% of primary bone tumors (behind osteosarcoma…

Choroid Plexus Carcinoma and Papilloma Updated by Jingya Wang BACKGROUND What % of intracranial neoplasms do choroid plexus (CP) tumors represent in adults and children? In adults, CP tumors account…

Wilms Tumor Updated by Eva N. Christensen BACKGROUND What is the estimated annual incidence of Wilms tumor (WT) in the U.S.? ∼500 cases/yr of WT are diagnosed in the U.S….

High-Grade Glioma Updated by Sarah McAvoy BACKGROUND What % of primary CNS tumors are malignant? ~40% of primary brain tumors are considered malignant. In adults, what is the most common…

Optic Pathway Glioma Updated by Andrew J. Bishop BACKGROUND What is the typical age distribution of patients diagnosed with optic pathway gliomas (OPGs)? OPGs have a bimodal distribution with peaks…

Hemangioblastoma Updated by Sarah McAvoy BACKGROUND What is the typical age of presentation for hemangioblastoma? 20–50 yrs is the typical age of presentation for hemangioblastoma (primarily in young adults). Where…

General Central Nervous System Updated by Jingya Wang BACKGROUND What is the estimated annual incidence of primary CNS tumors in the U.S.? ~50,000–55,000 cases/yr of CNS tumors (per the National…

Intracranial Germ Cell and Pineal Tumors Updated by Nikhil G. Thaker BACKGROUND What are the 2 broad categories of germ cell tumors? Gonadal and extragonadal Pineal tumors represent what %…

Craniopharyngioma Updated by Andrew J. Bishop BACKGROUND What is the origin of craniopharyngioma? Epithelial tumor derived from Rathke’s pouch, the embryonic precursor to the anterior pituitary In what region of…

Neuroblastoma Updated by Jingya Wang Background What are the 3 types of neuroblastic tumors? 3 types of neuroblastic tumors: 1. Neuroblastoma (NB) 2. Ganglioneuroblastoma 3. Ganglioneuroma These tumors differ in…