<prompt> A child presents with gelastic seizures, precious puberty. MRI shows small pedunculated mass attached to tuber cinerum. What is the diagnosis?MC cune albright syndromeKallman syndromeHypothalamic hamartomaPrader willi syndrome  <response>: Hypothalamic hamartoma :Most common brain lesion causing central precocious puberty.Consists of ectopically located neural tissue.May be associated with gelastic seizures laughing spells.MRI - small pedunculated mass attached to cinerum or floor of 3rd ventiricle. 