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Pigmented free-floating vitreous cyst in a child
David R Lally1, Jerry F Shields, Carol L Shields
1Ocular Oncology Service, Wills Eye Hospital, Thomas Jefferson University, Philadelphia, Pennsylvania 19107, USA.
Journal of Pediatric Ophthalmology and Strabismus
|February 22, 2008
Summary
A free-floating pigmented cyst in the eye can mimic choroidal melanoma. Further investigation confirmed the benign nature of the cyst, preventing unnecessary treatment for the young patient.
Area of Science:
- Ophthalmology
- Medical Imaging
Background:
- A pigmented fundus lesion was suspected to be a choroidal melanoma in an asymptomatic 8-year-old boy.
- Initial visual acuity was normal in both eyes.
Observation:
- Ocular examination revealed a pigmented lesion inferior to the fovea in the upright position.
- The lesion shifted to the superior macular region upon supine positioning.
- Ultrasound confirmed a cystic vitreous mass.
Findings:
- The observed pigmented lesion was identified as a benign, free-floating vitreous cyst.
- The cyst's mobility mimicked an intraocular tumor.
Implications:
- Distinguishing free-floating vitreous cysts from intraocular tumors is crucial for accurate diagnosis.
- This case highlights the importance of positional examination and ultrasonography in diagnosing intraocular masses.
- Avoidance of unnecessary invasive procedures for benign conditions.
