I was doing a google image search for 'absent pituitary stalk' and found a blog which profiles neuroradiology on the net with a patient with
Diagnosis: Pituitary stalk interruption (PSIS) syndrome
"Clinically, presentation will depend on the extent of the hormonal deficiencies. Neonatal patients usually present with hypoglycemic seizure. Pediatric patients with isolated growth hormone deficiency present with variable delay in growth, while those with greater degree of hypoplasia of the pituitary stalk and anterior pituitary gland present with symptoms associated with panhypopituitarism early in life.
Clinical suspicion of this syndrome is based on laboratory tests of low GH level, cortisol level, abnormal GH stimulation test, low FSH, LH, TSH and free T4. There is a high incidence of microphallus and cryptoorchidism in PSIS patients, which can be explained by the low levels of gonadotropins. "
http://neuroradiologyonthenet.blogspot.com.au/2009/12/pituitary-stalk-interruption-syndrome.html?m=1
