Pituitary resistance to thyroid hormone UMLS:C0342198 A condition in which the pituitary gland is partially resistant to thyroid hormone, so that it continues to secrete thyroid-stimulating hormone (TSH) until the blood level of thyroid hormone rises higher than normal. SNOMEDCT_US:360353005 HP:0008227 SNOMEDCT_US:360348000 Abnormality of the anterior pituitary