The patient was a 65-year-old female, admitted with a 10-year history of vision loss, aggravated for 6 months. On examination: visual acuity of the left eye was 0.3, visual acuity of the right eye was 0.6, and both temporal visual fields were deficient. The limbs moved freely and the muscle strength and tone were normal. Preoperative MRI examination showed that the main body of the tumor was located in the saddle and part of it was located in the saddle, and the normal pituitary tissue was below it, which was less common. Necrosis and cystic changes were seen inside the tumor. Intensification showed that the tumor tissues were obviously enhanced. Pre-operative MRI scan Pre-operative MRI intensification The patient was admitted to the hospital for coronal resection of right frontal craniotomy. The postoperative pathology showed: suspicious pheochromocytic pituitary adenoma. Postoperative MRI plain scan Postoperative enhanced MRI: total resection of tumor. Postoperative pathology: suspicious pheochromocytic pituitary adenoma.