Learn how pituitary tumors are diagnosed and treated as early as possible. Pituitary tumors are benign tumors that grow on the pituitary gland. Although pituitary tumors cannot be prevented, don’t worry because most pituitary tumors are benign and can usually be cured as long as treatment is timely enough. In order to detect pituitary tumors in time, some diagnostic methods are also of great concern. So, what are the diagnosis methods of pituitary tumor? 1.CT scan: It has diagnostic value only for large pituitary tumors, and tiny pituitary tumors are easily missed. It cannot be used as the main tool to diagnose pituitary tumor. 2.Cranial X-ray: This is a relatively primitive diagnostic method to determine the presence or absence of tumor and differential diagnosis according to the changes of bone quality of the pterygoid saddle and calcification in the saddle area. 3.MRI examination: MRI is preferred for imaging examination of pituitary tumor, which can clearly show the size, morphology, location and relationship between tumor and surrounding results. Even tumors with a diameter of 2 to 3 mm can be shown. However, there are some tumors whose signals are similar to the surrounding normal pituitary tissues, so it is difficult to distinguish between them, and it is necessary to combine clinical performance and endocrine examination for diagnosis. 4.Special examination: The special examination of pituitary tumor mainly refers to ophthalmic examination. Ophthalmological examination includes visual field examination, visual acuity examination and eye mobility examination. When the tumor presses the optic cross or optic bundle or optic nerve, it may cause visual field defect or accompanied by vision loss. When pituitary tumor invades both cavernous sinuses, it can cause impaired eye movement, diplopia, ptosis, etc. (cavernous sinus syndrome), and the arteriolar nerve is most frequently involved. Patients with pituitary tumors often show signs of cranial nerve compression.