A well-defined focal lesion in the cone of extraocular muscles of the eye with proptosis in a child. The diagnosis will be?: (A) Cavernous hemangioma, (B) Hemangioendothelioma, (C) Capillary angioma, (D) Retinoblastoma
Answer is A. Cavernous haemangioma is the commonest benign orbital tumour among adults. A tumour is usually located in the retrobulbar muscle cone. So, it presents as a slowly progressing unilateral axial proptosis in the second to fouh decade. It may occasionally compress the optic nerve without causing proptosis. Treatment. Surgical excision of a tumour is undeaken lateral orbitotomy approach. Since a tumour is well encapsulated, complete removal is generally possible. REFKhurana 4e pg: 394