Related Experiment Videos
Complete ring melanoma of the choroid
M Fitzpatrick1, J J Augsburger, F M Koreishi
1Oncology Retina Service, Wills Eye Hospital, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania 19107-5598, USA.
Retina (Philadelphia, Pa.)
|January 1, 1996
Summary
A rare complete ring melanoma of the choroid was identified in a patient. This unusual diffuse uveal malignant melanoma variant required enucleation for management.
Area of Science:
- Ophthalmology
- Oncology
- Pathology
Background:
- Ring melanoma typically affects the iris and ciliary body.
- Complete ring melanoma exclusively involving the choroid is exceptionally rare.
Observation:
- A 74-year-old woman presented with a 360-degree circumferential melanotic thickening of the choroid.
- Ultrasound biometry revealed a maximum mass thickness of 2.3 mm.
- Associated findings included subtotal serous retinal detachment with shifting subretinal fluid.
Findings:
- Histopathologic analysis confirmed a diffuse malignant melanoma composed primarily of spindle B cells.
- The tumor presented as a complete ring encircling the choroid.
Implications:
- This case highlights a rare variant of diffuse uveal malignant melanoma.
- Differential diagnosis for choroidal ring melanoma includes melanocytoma, melanocytosis, melanocytic proliferation, and lymphocytic infiltration.
- Enucleation was the chosen management for this extensive choroidal melanoma.