[The Tips of the Endocrine Assessment in the Case of Pituitary Tumor].

Pituitary tumors can cause an excess or deficiency of anterior pituitary hormones. Functional pituitary neuroendocrine tumors(PitNETs)include growth hormone(GH)-producing tumors, adrenocorticotropic hormone(ACTH)-producing tumors, thyroid-stimulating hormone(TSH)-producing tumors, and prolactin(PRL)-producing tumors. Comprehensive preoperative endocrine evaluation is essential for appropriate therapeutic decision-making and safe surgery. Here, we focus on the diagnosis and evaluation of PitNETs using endocrine function tests and intravascular catheterization for inferior petrosal sinus sampling for pituitary tumors.