Atypical Presentation of Choroidal Osteoma: Two Case Reports

Area of Science:

• Ophthalmology
• Oncology

Background:

• Choroidal osteoma is a rare, benign osseous choristoma.
• It typically presents unilaterally, favoring females and juxtapapillary locations.
• Visual loss occurs in nearly 60% of affected eyes, often when the macula is involved.

Observation:

• Two distinct cases of choroidal osteoma are presented.
• Case 1: A 74-year-old male with blurred vision, initially misdiagnosed as age-related macular degeneration.
• Case 2: A 19-year-old female with a history of choroidal hemangioma, presenting with blurred vision and macular detachment.

Findings:

• Accurate diagnosis of choroidal osteoma can be challenging due to its varied presentation.
• Multimodal imaging is crucial for differentiating choroidal osteoma from other fundus lesions.
• Successful diagnosis was achieved after cataract surgery in the first case and through examination in the second.

Implications:

• Early and accurate diagnosis of choroidal osteoma is vital for timely intervention.
• Recognizing potential misdiagnoses, such as age-related macular degeneration, is critical.
• This report underscores the need for comprehensive evaluation in suspected cases of choroidal osteoma.