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Hemorrhagic retinal macrocysts, simulating choroidal melanoma: a case report

Authors Mansour AM, Jaroudi MO

Received 25 March 2013

Accepted for publication 15 April 2013

Published 28 May 2013 Volume 2013:7 Pages 973—976


Checked for plagiarism Yes

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Peer reviewer comments 3

Ahmad M Mansour,1 Mahmoud O Jaroudi2

1Department of Ophthalmology, American University of Beirut, Beirut, Lebanon; 2Department of Ophthalmology, Rafic Hariri University Hospital, Beirut, Lebanon

Introduction: Hemorrhagic retinal macrocysts are extremely rare retinal lesions that can be mistaken for malignancy with subsequent enucleation. Such a case was diagnosed, by a retina specialist based on ultrasonography, as a choroidal melanoma with exudative retinal detachment and the patient was advised to have brachytherapy.
Case presentation: A 15-year-old Caucasian boy suffered sudden visual loss in the left eye and exam revealed vitreous hemorrhage. Magnetic resonance imaging revealed the mass as hyperintense on T1-weighted images and isointense on T2-weighted images with no enhancement after gadolinium dye. Following scleral buckle, the hemorrhagic retinal macrocyst collapsed gradually over a period of 5 weeks. The patient recovered visual acuity of 6/7.5 at the 1-year follow up.
Conclusion: A hemorrhagic retinal macrocyst can be erroneously diagnosed as choroidal melanoma. Hints for the presence of retinal macrocysts include: egg shape; cyst wall configuration; no attachment to the choroid; and presence of retinal detachment.

Keywords: choroidal melanoma, retinal macrocyst, retinal detachment

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