Analysis of orbital malignancies presenting in a tertiary care hospital in Pakistan

Objective: to determine the frequencies of various orbital malignancies amongst orbital lesions in patients presenting in a tertiary care hospital in pakistan. methods: a retrospective analysis of 666 orbital cases with an established histopathological diagnosis of malignant tumors treated in mayo hospital lahore from 1996 to 2015 (20 years). results: about 66% of the malignant tumors were primary,25% secondary,8% haematopoietic and 1% metastatic. almost 50% of the cases were children. retinoblastoma is the commonest tumor (43% overall and 87% among children). squamous cell carcinoma is the second commonest (15.6% overall and 31% among adults). these are then followed by adenoid cystic carcinoma of lacrimal gland (9%),lymphoma/leukaemia (8%) and rhabdomyosarcoma (6.3%). conclusion: frequencies of various orbital malignancies show geographical variation in both paediatric and adult population. © 2017,professional medical publications. all rights reserved.