Medulloblastoma
Medulloblastoma Updated by Nikhil G. Thaker BACKGROUND Estimate the annual incidence of medulloblastoma (MB) in the U.S. What is its frequency relative to other CNS tumors in children? ~500 cases/yr…
Retinoblastoma
Retinoblastoma Updated by Vinita Takiar BACKGROUND What is the incidence and median age for presentation of retinoblastoma (RB)? 250–300 cases/yr of RB; 95% <5 yo (1 yo for familial, 2…
Ependymoma
Ependymoma Steven H. Lin, Ori Shokek, and Updated by Mark Edson BACKGROUND In children and adults, what % of brain tumors are ependymomas? Children: 5% (3rd most common childhood CNS…
Langerhans Cell Histiocytosis
Langerhans Cell Histiocytosis Updated by Mark Edson BACKGROUND What is the estimated annual incidence of Langerhans cell histiocytosis (LCH) in the U.S.? ~1,200 cases/yr of LCH in the U.S. It…
Rhabdomyosarcoma Updated by Vinita Takiar
Rhabdomyosarcoma Updated by Vinita Takiar BACKGROUND What are the 3 most commonly tested rhabdomyosarcoma (RMS) cases on the radiation oncology oral boards? Bladder (trigone), parameningeal (PM), and orbit What are…
Ewing Sarcoma
Ewing Sarcoma Updated by Randa Tao WORKUP/STAGING What is the annual incidence of Ewing sarcoma (EWS) in the U.S.? How common is it relative to other bone tumors? 200 cases/yr…
