Radiology Key

Seminoma Updated by Reid F. Thompson BACKGROUND Clinically, what are the 2 main subgroups of testicular germ cell tumors (GCTs)? Seminomatous and nonseminomatous germ cell tumors (NSGCTs) are the 2 main…

Penile Cancer Updated by Jing Zeng BACKGROUND What is the estimated annual incidence of penile cancer Dx in the U.S.? What % of male cancers does this represent? How is…

Plasmacytoma/Multiple Myeloma Updated by Robert Prosnitz BACKGROUND What is the cell of origin in multiple myeloma (MM), and what does this cell usually secrete? Mature B cells are the cell…

Low-Grade Glioma Updated by Andrew J. Bishop BACKGROUND Low-grade gliomas (LGGs) account for what % of all primary brain tumors? ~10% of all primary brain tumors are LGGs. Is there…

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…