PET-CT aids in the diagnosis of a choroidal mass with retinal detachment in a patient with history of breast cancer and sarcoidosis.

1 of 3 DESCRIPTION The authors report a case of a 47-year-old female with a history of sarcoidosis and early stage breast cancer diagnosed and treated for potential cure 10 years earlier with right mastectomy, who presented with a progressive left visual fi eld defect developing over 2 weeks. Physical examination demonstrated a lobulated choroidal mass with a serous retinal detachment ( fi gure 1 ). MRI confi rmed a left orbital retinal detachment. F-18 fl urodeoxyglucose (FDG) positron emission tomography CT (PET-CT) imaging demonstrated hypermetabolism diffusely throughout osseous structures, numerous lymph node stations and the left posterior choroid ( fi gures 2 and 3 ). No calcifi ed lymph nodes were seen on CT. Retrospective review of the MRI showed very mild enhancement correlating to the hypermetabolic choroid lesion. Biopsy of a hypermetabolic neck lymph node confi rmed the presence of metastatic breast cancer. Metastatic carcinoma to the eye is regarded as the most common intraocular malignant neoplasm, which in woman is breast cancer. 1 Metastatic deposits to the eye can spread to the choroid, optic disc, iris and ciliary body. Choroid tumours are one of the causes of serous retinal detachments, whereby subretinal fl uid produces localised exudative or bullous detachments of the retina. Images in...