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Implantation and Evaluation of Melanoma in the Murine Choroid via Optical Coherence Tomography
Published on: December 2, 2022
[Ring melanoma revealed by spontaneous hyphema].
N Abi-Ayad1, J D Grange, E Watkin
1Service d'Ophtalmologie, Hôpital de la Croix-Rousse - Hospices Civils de Lyon, Lyon, France.
Journal Francais D'Ophtalmologie
|September 20, 2007
Summary
Ring melanoma, a rare uveal melanoma, can present as acute ocular hypertonia due to hyphema. Early diagnosis via fundus examination and B-scan ultrasonography is crucial for this ciliochoroidal tumor.
Area of Science:
- Ophthalmology
- Oncology
Background:
- Ring melanoma is a rare uveal melanoma involving the ciliary body.
- It often presents as unilateral chronic glaucoma.
Observation:
- A case of ring melanoma presented with acute intraocular hypertonia secondary to spontaneous hyphema.
- Tumor invasion of iris and iridocorneal angle was noted.
- B-scan ultrasonography revealed a ciliochoroidal tumor; enucleation confirmed the diagnosis.
Findings:
- The tumor involved angle structures, leading to acute intraocular hypertonia.
- Metastasis occurred, with the patient dying one year post-enucleation.
- Acute hypertonia secondary to hyphema is an exceptional presentation of uveal melanoma.
Implications:
- Intraocular hypertonia, especially acute, warrants thorough fundus examination and potentially B-scan ultrasonography.
- Early detection of uveal melanoma is critical, even with atypical presentations like hyphema-induced glaucoma.
- This case underscores the importance of investigating all causes of elevated intraocular pressure.
