pituitary stalk interruption syndrome
Pituitary stalk interruption syndrome (PSIS) is a congenital abnormality of the pituitary that is responsible for pituitary deficiency and is usually characterized by the triad of a very thin or interrupted pituitary stalk, an ectopic (or absent) posterior pituitary (EPP) and hypoplasia or aplasia of the anterior pituitary visible on MRI. In some patients the abnormality may be limited to EPP (also called ectopic neurohypophysis) or to an interrupted pituitary stalk.
MONDO:0002254
syndromic disease
is_a
MONDO:0019824
non-acquired pituitary hormone deficiency
is_a
PSIS
exact
ectopic neurohypophysis
exact
hypoplastic anterior pituitary, missing stalk, and ectopic posterior pituitary
exact