True statement regarding Brain Tumor in children is -

Ans. is 'a' i.e., Mostly is infra-tentorial` Brain tumors in children o Brain tumors are the second most common malignancy of childhood next only to leukemia. o Brain tumors are the most common solid cancer of childhood. o Over two-thirds of brain tumors are infratentoterial. o Most of these tumor occur near the midline --/ commonly obstruct CSF circulation and cause hydrocephalus early in disease. These can also cause T ICT and papilledema (In infants papilledema may be absent because of open sutures and bulging fontanelle). o There is age related differences in primary location of tumor - 1) Infant (Is' year of life) --->Mostly supratentorial, most common are choroidal plexus tumor and teratoma. 2) 1-10 years --> Mostly infratentorial, most common are medulloblastoma and cerebellar astrocytoma (juvenile pilocytic astrocytoma). 3) After 10 years --> mostly supratentorial, most common is diffuse astrocytoma.