Choroidal melanoma: B-scan spectrum

Abstract

Malignant melanoma of the choroid is the commonest primary intra-ocular tumor in the adults, 85% arising from the choroid and 15% from the ciliary body. We present two cases of intraocular choroidal melanoma with varied manifestations. One in a fifty two year old man and another in a forty-two years old woman presenting with gradual loss of vision in one eye. A bilobed mushroom shaped (figure of eight shape) intraocular lesion was seen to arise from choroid protruding into the vitreous and revealing a "waist" in it's midportion in the right eye of fifty two year old man. B-Scan of right eye in the forty-two years old woman revealed a large intraocular mass with mid level echos and lobulated contours filling nearly the whole posterior segment.