Related Experiment Video
Updated: Aug 25, 2026

Implantation and Evaluation of Melanoma in the Murine Choroid via Optical Coherence Tomography
Published on: December 2, 2022
Hemorrhagic complication in an unsuspected macular choroidal melanoma
Wai-Man Chan1, Alvin K H Kwok, David T L Liu
1Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong. cwm6373@netvigator.com
Purpose:
To report a rare presentation of a hemorrhagic complication in a patient with unsuspected macular choroidal melanoma.
Design:
Interventional case report.
Methods:
A 32-year-old Chinese woman presented with disturbance of her left central vision. A hemorrhagic mass at the macula was noticed that was evacuated by submacular surgery.
Results:
The mass expanded rapidly into a mushroom configuration after surgery. Fine-needle aspiration confirmed the diagnosis of malignant choroidal melanoma, and enucleation followed. Histology demonstrated moderately large epithelioid tumor cells with prominent nucleoli. The sclera was intact, and the optic nerve was not involved. The patient has been followed for 5 years without signs of local recurrence or metastasis.
Conclusion:
We should be alert for atypical presentations of choroidal melanoma. Unnecessary or inadvertent surgical intervention may induce tumor growth and subsequent local spread or metastasis.
Related Concept Videos
Hemorrhagic Stroke ll: Pathophysiology
Hemorrhagic Stroke l: Introduction
Esophageal Varices-II: Clinical Features and Management
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol abuse, or...
