A child presents with gelastic seizures, precious puberty. MRI shows small pedunculated mass attached to tuber cinerum. What is the diagnosis?
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.
MC cune albright syndrome
Kallman syndrome
Hypothalamic hamartoma
Prader willi syndrome