e/Myxedematous psychosis

Information
has gloss	eng: Myxedema psychosis, more colloquially known as myxedema madness, is a relatively uncommon consequence of hypothyroidism, particularly Hashimoto's thyroiditis. A chronically under-active thyroid can lead to slowly progressive dementia, delirium, and in extreme cases to hallucinations, coma, or psychosis, particularly in the elderly. It was first recognized by Dr Richard Asher of London in 1949.
lexicalization	eng: Myxedematous psychosis
instance of	(noun) anything that accompanies X and is regarded as an indication of X's existence symptom