2012年2月1日 · Choroidal nevi are benign melanocytic lesions of the posterior uvea. In the United States, their prevalence ranges from 4.6 percent to 7.9 percent in Caucasians. 1 By comparison, choroidal melanoma is rare, manifesting in approximately six in 1 million Caucasian individuals.

Case reports: A case of an amelanotic choroidal nevus and melanoma are presented. In Case 1, a 26-year-old white female was found to have a large amelanotic nevus in the right eye. After 7 years of periodic observation, the lesion has not changed.

Another small benign-appearing choroidal nevus (arrow). Some nevi can have areas that appear nonpigmented or amelanotic, and others are mostly amelanotic and appear yellowish rather than brown (Figure 3).

2024年11月1日 · A choroidal nevus is a benign melanocytic lesion within the choroid. These nevi are analogous to moles found on the skin and are often flat or minimally elevated with well-defined margins. Choroidal nevi are often asymptomatic and typically discovered incidentally during routine ophthalmic examinations.

There’s such a thing as an amelanotic choroidal nevus, which simply means that the spot is very light in color. Both choroidal nevi and iris nevi are forms of uveal nevi. How common is this condition? Having an eye freckle (nevus) isn’t rare. An estimated 1 …

The differential diagnosis of amelanotic nevi of the choroid is discussed and includes amelanotic malignant melanoma, cavernous hemangioma of the choroid, metastatic cancer to the choroid, posterior

2021年10月5日 · Pigmentation can vary, and less commonly, lesions may be amelanotic. Additional clinical significance findings include the absence of drusen, subretinal fluid, orange pigment, and choroidal neovascularization (CNV). It’s crucial to assess every nevus for these features as they can be associated with an increased risk of malignancy.

The differential diagnosis of amelanotic nevi of the choroid is discussed and includes amelanotic malignant melanoma, cavernous hemangioma of the choroid, metastatic cancer to the choroid, posterior scleritis, choroidal osteoma, and hypopigmented congenital hypertrophy of the retinal pigment epithelium.

A choroidal nevus is a well-circumscribed, benign melanocytic tumor that is managed by periodic observation. They typically appear as small (less than 2 mm thick, asymptomatic, and with overlying retinal pigment epithelial atrophy and drusen, signifying a chronic condition.

Although it may be congenital, choroidal nevus is not typically observed in small children. It usually is first detected in adulthood and can be flat or minimally elevated and pigmented or non-pigmented (amelanotic).