The Ophthalmology Unit,  Universiti Malaysia Sarawak (UNIMAS), Kuching, Sarawak.

The Ophthalmology Department, Sarawak General Hospital, Kuching, Sarawak, East Malaysia.

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Medial canthal dermoid

Photo by Dr. Tan Aik Kah

This 4 year-old boy presented with a left medial canthal swelling which the referring doctor thought was a mucocele because of intermittent epiphora. However, the swelling was superior to the medial canthus suggesting that it was unlikely to be of lacrimal sac origin (which would be posterior to the medial canthus). A CT scan showed no intracranial extension of the lesion. Excision showed the expected dermoid cyst anterior to the lacrimal sac.

 

Left medial canthal swelling.

 

Dermoid cyst exposed.

 

Wall of lacrimal sac could be visualized after the dermoid cyst was excised.

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