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Congenital Smooth Muscle Hamartoma Obscuring the Cornea.

Andrew Bean¹, Abdullah Al-Bouri², Geoffrey Bradford¹

¹Department of Ophthalmology and Visual Sciences, West Virginia University School of Medicine, 1 Medical Center Drive, P.O. Box 9193, Morgantown, WV 26506, USA.

Case Reports in Ophthalmological Medicine

|May 26, 2021

Summary

This study reports the first case of congenital smooth muscle hamartoma in a newborn's bulbar conjunctiva/limbus. This rare benign tumor required surgical excision in infancy.

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Area of Science:

Ophthalmology
Pathology
Pediatric Surgery

Background:

Congenital smooth muscle hamartoma (CSMH) is a rare, benign smooth muscle proliferation.
CSMH typically presents on the trunk or proximal extremities.
Ocular involvement, while rare, has been documented in the brow, eyelid, and conjunctival fornix.

Observation:

A newborn male presented with an atypical congenital bulbar lesion obscuring the cornea.
The lesion appeared to originate from the bulbar conjunctiva and/or limbus.
Surgical excision was performed at 5 months of age.

Findings:

Pathologic evaluation confirmed the lesion as congenital smooth muscle hamartoma.
This represents the first reported case of CSMH originating from the bulbar conjunctiva/limbus.
Histological analysis revealed characteristic smooth muscle proliferation.

Implications:

This case expands the known spectrum of ocular congenital smooth muscle hamartoma presentations.
Highlights the importance of considering rare diagnoses in congenital ocular lesions.
Early diagnosis and surgical intervention are crucial for potential visual outcomes.