MALIGNANT TRANSFORMATION OF A CHOROIDAL NEVUS IN AN EYE TREATED FOR CHOROIDAL MELANOMA.
OBJECTIVE
To report a case of a choroidal melanoma and a discrete choroidal nevus that has transformed into a malignant melanoma 5 years after initial diagnosis.


METHODS
Retrospective case report.


RESULTS
A diffuse macular choroidal melanoma and a discrete choroidal nevus located superonasal to the optic disk were diagnosed in the right eye of a 63-year-old woman in 2009. The patient was treated by ruthenium plaque radiotherapy for the choroidal melanoma, which consequently flattened and scarred. On a routine eye check in 2014, the nevus was found to have been transformed into a choroidal melanoma. It was treated with ruthenium plaque radiotherapy.


CONCLUSIONS
Although extremely rare, patients with a uveal melanoma can develop an additional discrete uveal melanoma. This case highlights the importance of monitoring benign choroidal nevi in patients with a history of choroidal melanoma.
Ocular Oncology Service, St Bartholomew's and Moorfields Eye Hospitals, London, United Kingdom.
Ido D
ID
Fabian
Amit K
AK
Arora
Victoria M L
VM
Cohen
D002471:Cell Transformation, Neoplastic / Q000473:pathology*; D002830:Choroid Neoplasms / Q000473:pathology*; D005260:Female; D006801:Humans; D008545:Melanoma / Q000473:pathology*; D008875:Middle Aged; D012189:Retrospective Studies; D014604:Uveal Neoplasms / Q000473:pathology*; D000098943:Uveal Melanoma