Most common malignant intraorbital tumor in adult is ?
Correct Answer: Lymphoma
Description: Ans. is 'a' i.e., Lymphoma An orbital tumor is any tumor that occurs within the orbit of the eye. The orbit is a bony housing in the skull that provides protection to the entire eyeball except the frontal surface. It is lined by the orbital bones and contains the eyeball, its muscles, blood vessels, nerves and fat. An intraocular tumor is the tumor which occurs within the eyeball. Most common intraocular tumor in adults is metastasis. Metastasis is paicularly common from carcinoma of breast and lung. Most common primary intraocular tumor in adults is uveal melanoma. Most of the uveal malignant melanoma arise in choroid. Most common primary intraocular tumor is children is retinoblastoma. Most common orbital tumors in adults are benign vascular tumors - Cavernous hamangioma. Most common malignant orbital tumor in adult - lymphoma Most common orbital tumors in children are benign tumors - Dermoid cyst > capillary hemangioma Most common malignant orbital tumor in children - rhabdomyosarcoma. Overall most common primary malignant tumor of eye is malignant melanoma followed by retinoblastoma Most common malignant eyelid tumor - Basal cell carcinoma. Most common epithelial tumor of lacrimal gland Pleomorphic adenoma (benign mixed tumor) Overall most common tumor of lacrimal gland - Lymphoid tumour and inflammatory pseudo - tumors Most common malignant tumor of conjunctiva & cornea - Squamous cell carcinoma.
Category:
Ophthalmology
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