Central hypothyroidism. The pituitary gland is not particularly enlarged overall, but appears to enhance heterogeneously, with an ill-defined relatively hypoenhancing subcentimeter area in the left lobe of the adenohypophysis, which is slightly larger than the right lobe. The posterior pituitary bright spot is intact. The pituitary infundibulum is intact, but deviated slightly to the left. The cavernous sinuses and optic apparatus are intact. There is a nonspecific left cheek skin excrescence.
The pituitary gland is not particularly enlarged overall, but appears to enhance heterogeneously, with a relatively hypoenhancing subcentimeter area in the left lobe of the adenohypophysis, which may indicate an underlying microadenoma. Follow up via dynamic contrast enhanced MRI of the pituitary may be useful. Otherwise, no evidence of macroadenoma. 