Possible causes of right pontine cerebellar angle region occupancy include granuloma, cyst, tumor, etc. 1. Granuloma: due to intracranial parasites and other causes of granulomatous lesions, patients will experience repeated symptoms of dizziness and headache, and may present with right pontine cerebellar region occupying lesions. 2. Cysts: this disease is mostly caused by congenital factors, generally smaller cysts have no obvious symptoms and do not require special treatment. Larger cysts may have headache, nausea, etc., which can be treated by surgical resection. 3. Tumor: for example, meningioma, pituitary tumor, neuroma, glioma, etc., which can lead to the occupation of the right side of the bridge cerebellar angle area. Patients may manifest dizziness, headache, nausea, vomiting, limb motor and sensory dysfunction. After the occupation of the right bridge cerebellar angle region to improve the auxiliary examination, under the guidance of the doctor to choose the treatment plan.