• stalk
  • The pars tuberalis , (tubular part), forms a part of the sheath extending up from the pars distalis which joins with the pituitary stalk (also known as the infundibular stalk or infundibulum ), arising from the posterior lobe. (wikipedia.org)
  • If originating superior to the optic chiasm, more commonly in a craniopharyngioma of the pituitary stalk, the visual field defect will first appear as bitemporal inferior quadrantanopia, if originating inferior to the optic chiasm the visual field defect will first appear as bitemporal superior quadrantanopia. (wikipedia.org)
  • excessive
  • excessive ADH secretion leading to hyponatremia, low serum osmolality, mental status change, and seizures (from cerebral edema). (brainscape.com)
  • Symptoms caused by hormone excess and associated mass effects include: Hirsutism Visual field loss or double vision Excessive sweating Decreased libido Lethargy Headache Muscle weakness Bruisability The cause of hyperpituitarism in most cases is due to pituitary adenomas. (wikipedia.org)
  • Excessive TSH hormone production leads to hyperthyroidism. (thewordscraft.com)
  • Nelson's
  • Earlier, Nelson's syndrome was observed in 20-40% of patients who had a bilateral adrenalectomy with a pituitary adenoma. (wikipedia.org)
  • Hyper-pigmentation and fasting ACTH levels within plasma above 154 pmol/l are predictive of Nelson's syndrome after an adrenalectomy. (wikipedia.org)