{'fraction_non_alphanumeric': 0.023099133782483156, 'fraction_numerical': 0.009624639076034648, 'mean_word_length': 5.117647058823529, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Large turbid retinal pigment epithelial detachment camouflaging an underlying choroidal nevus.

PURPOSE
To report an unusual large turbid detachment of the retinal pigment epithelium (RPE) overlying a hidden choroidal nevus.


METHODS
Case report.


RESULTS
A 51-year-old woman was referred with an asymptomatic yellow subretinal mass in the left eye presumed to represent a choroidal metastasis or melanoma. Visual acuity was 20/20 in both eyes. Ophthalmoscopy of the left eye revealed a well defined, abruptly elevated, dome-shaped amelanotic lesion temporal to the macular area measuring 4 mm in basal dimension and 2.2 mm in thickness. There was no evidence of drusen, inflammation, or hemorrhage. Fluorescein angiography and optical coherence tomography suggested RPE detachment from unknown cause. After 6 years follow-up, the RPE detachment resolved, exposing an underlying chronic choroidal nevus as the etiology.


CONCLUSIONS
Choroidal nevus can produce an overlying RPE detachment that completely obscures the underlying lesion.