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What is All of the following childhood tumours cause proptosis except: September 2009 and explain in detail?
Ans. A: Retinoblastoma Causes of proptosis in children are: Orbital cellulitis Leukemia Optic nerve+-optic chiasm glioma Orbital rhabdomyosarcoma Metastatic neuroblastoma Plexiform neurofibromatosis Orbital haemangioma Metastatic Ewing's sarcoma Orbital dermoid cyst Lymphangiomas In adults the causes of proptosis are: Metastases from the breast, lung and GIT Cavernous hemangioma Mucoceles Lacrimal gland tumours Lymphoid tumours Meningiomas