Choroidal malignant melanoma in a "collar button" configuration
Contributor: Jesse Vislisel, MD
Choroidal malignant melanoma with disruption of Bruch's membrane and nodular eruption in a "collar button" shape. B-scan ultrasonography shows the peaked choroidal mass with adjacent exudative retinal detachment. A-scan shows low to medium internal reflectivity. The gross and histopathology specimens are demonstrated in the bottom two photographs. Read the full case report for more information on this patient and choroidal malignant melanoma.
Ophthalmic Atlas Images by EyeRounds.org, The University of Iowa are licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.