A retrospective study of cerebellopontine angle tumours: A single instituitional study

Abstract

: Cerebellopontine angle (CPA) tumors are rare intracranial neoplasms that arise in the region between the cerebellum and the pons. These tumors can be challenging to treat due to their complex anatomy and proximity to critical neurovascular structures. Surgical intervention is often necessary to achieve a favorable outcome. The primary objectives of this retrospective study are to analyze the clinical and radiological characteristics of cerebellopontine angle tumors, identify pathological types, assess surgical resectability, and evaluate postoperative outcomes.: The study enrolled 14 patients who underwent surgical intervention for cerebellopontine angle tumors at Armed forces medical college, Pune. A retrospective analysis was performed, considering demographic data, clinical presentations, imaging characteristics and surgical outcomes.: Vestibular schwannoma was the predominant tumor type with majority of tumors manifesting between third to fifth decades. Clinical manifestation included SNHL, cerebellar dysfunction, headache and sensory trigeminal dysfunction. A substantial proportion (86%) presented with no useful hearing preoperatively. Surgical outcomes indicated varying degrees of success, with total resection achieved in a subset of cases. Notably, anatomical preservation of the facial nerve was accomplished in a significant proportion of patients. Postoperative assessments, using the House Brackmann system, revealed positive facial nerve function outcomes in a substantial percentage. Complications included cerebrospinal fluid leak (14%), meningitis(7%) and lower cranial nerve paresis (7%). : In conclusion, surgical intervention plays a crucial role in the management of cerebellopontine tumors. The choice of surgical approach should be individualized based on tumor characteristics and patient factors, with the goal of achieving maximum tumor resection while minimizing complications. Further research and advancements in surgical techniques are needed to optimize outcomes for patients with cerebellopontine tumors.