Chondrosarcomas of temporal bone is a rare malignant neoplasm constituting only 0. 16% of all intracranial tumors. Cranial nerve involvement in chondrosarcoma of temporal bone is related to specific anatomic location of the tumor. Isolated facial palsy should be evaluated thoroughly and should be differentiated from Bell's palsy. We present a case of isolated facial palsy due to mastoid bone chondrosarcoma in a 25 year old man which was misdiagnosed as Bell's palsy and treated for the same previously. The clinical features, management and outcome are discussed with reviewing the related literature.

BACKGROUNDOrbital tumours are rare and complex lesions, which require a multidisciplinary approach for diagnosis and management. They pose a great challenge for the neurosurgeons and ophthalmologists. MATERIALS AND METHODSThis is a retrospective study with analysis of data for 15 patients who underwent surgery for orbital tumours at our institution. Data available from 2007 to 2016 was collected and analysis was done. Clinical presentation, age, sex, imaging features, approaches planned, surgical records, histopathological findings and follow up records were extracted for statistical analysis. RESULTSMost common presentation was exophthalmos (80%), visual disturbances (46.6%), diplopia (40%), retro-orbital or periorbital pain (20%). The most used surgical approach was FTOZ (33.3%) followed by lateral orbitotomy (20%). Histopathological findings showed that most of the orbital tumours were haemangiomatous tumours (33.3%) followed by neurofibromas (20%). Malignant tumours accounted for (33.3%). Total resection was achieved in 53.3% of cases. Recurrence was seen in 33.3% cases. CONCLUSIONOrbital tumours need a multidisciplinary approach. Early diagnosis, better imaging modalities correlated with good surgical skills provides good functional outcome. Surgical approach should be planned according to the location and extension of the tumour. Histopathology remains the mainstay of diagnosing the tumour and prognostication of the disease. HOW TO CITE THIS ARTICLE:Bhushanam TV, Prahaladu P, Varaprasad KS, et al. Single institutional experience in surgical management of orbital tumours-Neurosurgical perspective in surgical approach. J. Evid. Based Med.