<prompt> True about effects of on a childs brainIQ not significantly affectedBehaviour changes are commonRecurrent seizure commonNo memory loss  <response>: B i.e. Behaviour changes are common Effect of on cognitive functions i.e. global intelligence, IQ learning, memory, attention and behavior depends on age 3-5 years of patient, volume of irradiation CSI and dose 362418Q. - Endocrinal deficiencies GH ACTH and gonadotropin TSH lit hypothyroidism can occur dt irradiation of hypothalamic - pituitary axis. Total dose and differential sensitivity of hypothalamic nuclei are impoant determinant. Hypothalmic obesity, diabetes insipidus and hyperprolactinemia are more often dt local tumor effects and surgery. Thyroid and ovarian failure often occurs dt CSI dt incidental irradiation of these organs. Other long term somatic complications include permanent hair loss, wound healing problems, softening of bone and ligaments of spine and spinal growth impairment and small head size musculo-skeletal problemsQ. 