If the tumor has typical amenorrhea-lactation syndrome or acromegaly syndrome, it is not difficult to diagnose, but if there are no typical symptoms, it should be differentiated from the following diseases: 1. Craniopharyngioma: It occurs mostly in children, besides impaired vision and visual field, there are also developmental arrest, sexual organ dysplasia, obesity and urinary collapse and other manifestations of hypopituitarism and hypothalamic damage. Especially, the rate of tumor calcification is extremely high, accounting for about 60% to 70%, and calcified spots are mostly seen in the saddle.
2.Saddle node meningioma: visual acuity and visual field impairment are mostly early symptoms, no endocrine symptoms, the size of the butterfly saddle is normal, but the saddle node and the platform of the butterfly bone can be seen as osteophytes or destruction, often with symptoms of increased intracranial pressure.
Optic nerve glioma: It mostly occurs in children and starts with progressive vision loss on one side, protrusion of the eyeball on the side of the disease, and the optic nerve hole may be enlarged.
4. Optic cross pearl retinitis: The main manifestations are vision loss, irregular visual field changes, more rapid onset, often with remission period, less endocrine symptoms, and normal size of pterion saddle.
5, intracranial aneurysm: patients are mostly middle-aged, with a history of spontaneous subretinal hemorrhage, often with headache on one side, and ipsilateral actinic nerve palsy, no visual acuity and visual field change, no endocrine symptoms, and normal size of the butterfly saddle. DSA examination can be done to identify.