Abstract
This is the commonest site of a dermoid swelling in children. External angular dermoids are congenital swellings occurring at the outer corner of the eye typically appearing as a mass beneath the outer end of the eyebrow. They form at the sites of the lines of embryonic fusion where ectodermal elements either get trapped beneath the skin or fail to disconnect from the developing neural tube. The swelling, despite being attached to the underlying periosteum is mobile and non tender. Untreated, the swelling grows in size, eventually impinging on opening of the eye.
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Smith CD. Cysts and sinuses of the neck. In: Grosfeld JL, O’Neill JA, Fonkalsrud EW, Coran AG, eds. Pediatric Surgery. 6th ed. St. Louis, MO: Mosby Elsevier; 2006:861-874.
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Wakhlu, A. (2010). External Angular Dermoid and Pilomatrixoma. In: Godbole, P., Koyle, M., Wilcox, D. (eds) Guide to Pediatric Urology and Surgery in Clinical Practice. Springer, London. https://doi.org/10.1007/978-1-84996-366-4_16
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DOI: https://doi.org/10.1007/978-1-84996-366-4_16
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