Choroidal nevus
Choroidal nevus is best visualized using near-infrared reflectance (NIR) imaging. Its appearance may vary: it can be hyperreflective in confocal systems or hyporeflective in non-confocal imaging, depending on the imaging modality and melanin density. NIR enhances contrast for detecting and monitoring nevi, especially when they are not clearly visible on color fundus photography or FAF. #ChoroidalNevus #NIR #NearInfraredReflectance #RetinaImaging…
Choroidal nevus
Choroidal nevus is a benign pigmented lesion that can be evaluated using fundus autofluorescence (FAF). Most nevi appear hypoautofluorescent due to their dense pigmentation blocking autofluorescence. However, areas of hyperautofluorescence may indicate overlying retinal pigment epithelium (RPE) changes, such as lipofuscin accumulation, which could signal an increased risk of malignant transformation. #ChoroidalNevus #FAF #Hypoautofluorescence…
Choroidal nevus
Choroidal nevus is a benign pigmented lesion that requires multimodal evaluation to monitor for signs of growth or malignant transformation. It is typically not visible on blue FAF or in blue and green channels, but it appears clearly on Near-Infrared Reflectance (NIR) and the red channel, which provide high contrast and detail. These imaging methods are essential for assessing nevus stability over time. #ChoroidalNevus #MultimodalImaging #NIR…
Choroidal nevus
Choroidal nevus is a benign pigmented lesion in the choroid. The red channel in color fundus photography and Near-Infrared Reflectance (NIR) imaging are useful for enhancing the visibility of the nevus. These imaging modalities help in monitoring the nevus for any changes that could indicate malignant transformation, providing detailed visualization of its structure and extent. #ChoroidalNevus #RedChannel #NIR #RetinaImaging #Ophthalmology #retina…
Ricardo Leitão Guerra
