A 11 month old female child with bleeding per vagina.
Precocious puberty as per endocrinologist, advised MRI Brain for Pituitary.
MRI brain shows a supra sellar solid well defined lesion.
Pituitary seen separately in hypophyseal fossa. Normal
enhancing pituitaty stalk seen separately and immediately anterior to lesion.
Lesion is iso intense to cortical gray matter on T1 as well
as T2 w images, no cystic component. No enhancement on post contrast T1.
Lesion is in mid line, in the region of tuber cinerium and
appears to be protruding from hypothalamus.
Imaging wise diagnosis: Hypothalamic Hamartoma.
Discussion: Hypothalamic Hamartoma supports clinical finding
of Precocious Puberty though age is unusual but presentation with Precocious
Puberty at 1 year of age is known and is well mentioned in literatures.
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