Related Experiment Video
Updated: Jan 28, 2026

Implantation and Evaluation of Melanoma in the Murine Choroid via Optical Coherence Tomography
Published on: December 2, 2022
Retinal detachment with hemorrhagic intraretinal macrocyst clinically presenting as pseudo-choroidal melanoma
Anmol U Naik1, Pukhraj Rishi1, V Jaya Prakash1
1Shri Bhagwan Mahavir Vitreoretinal Services, Sankara Nethralaya, Medical Research Foundation, Chennai, Tamil Nadu, India.
Abstract:
A 23-year male with complaint of diminution of vision in left eye was referred to us as a suspect case of inflammatory choroidal mass/melanoma. Examination revealed a total retinal detachment with a reddish brown lesion in the superior hemi-fundus. B-scan ultrasonography demonstrated the 'mass' to be intra-retinal without choroidal involvement. A diagnosis of haemorrhagic intraretinal macrocyst (HIM) was made. We report this case to highlight the importance of correctly diagnosing an HIM and utilizing ultrasound to rule out choroidal pathologies, especially melanoma. This is essential as the management and prognosis of the two disorders is entirely different.
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