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Disciform choroidal melanoma
1Department of Ophthalmology, Pennsylvania Lions Vision and Research Center, Penn State University, College of Medicine, Hershey 17033.
Background:
The clinical and histopathologic findings in a hemorrhagic lesion involving the right macula of a 77-year-old man are presented. Clinical and fluorescein angiographic evaluation of the lesion led to a diagnosis of subretinal neovascular membrane secondary to age-related macular degeneration (AMD). The membrane was judged to be amenable to surgical excision and was excised.
Methods:
Histopathologic and immunohistochemical studies were performed on the excised tissue.
Results:
The lesion was a small, epithelioid cell choroidal melanoma.
Conclusions:
Newer surgical techniques for AMD may tend to preclude watchful waiting in the diagnosis of unusual hemorrhagic lesions in the macula, thereby increasing the importance of histopathologic examination of any tissue removed during such procedures.
Insights
A hemorrhagic lesion initially diagnosed as age-related macular degeneration (AMD) was surgically removed. Histopathology revealed it was actually a choroidal melanoma, highlighting the need for tissue examination.
Area of Science:
- Ophthalmology
- Surgical Pathology
Background:
- A hemorrhagic lesion in the macula of a 77-year-old male was evaluated.
- Initial diagnosis suggested subretinal neovascular membrane secondary to age-related macular degeneration (AMD).
Observation:
- The lesion was surgically excised.
- Histopathologic and immunohistochemical analyses were performed on the excised tissue.
Findings:
- The excised lesion was identified as a small, epithelioid cell choroidal melanoma.
- This diagnosis differed from the initial clinical assessment of AMD.
Implications:
- Unusual macular hemorrhagic lesions require careful histopathologic examination.
- Modern surgical approaches for AMD may necessitate tissue analysis to avoid misdiagnosis of conditions like choroidal melanoma.