Dermoid and Epidermoid Cysts
Raymond G Buick
Paediatric Surgeon
Birmingham UK
December 2008
Dermoid Cysts
• Sites– Ext angle eye– Nasal bridge– Submental– Sternal
Dermoid CystsExternal Angular Dermoid
Do not shave eyebrowMake incision in eyebrow
Dermoid Cysts• Midline Dermoids
• CT or MRI before surgery
• Intracranial extension is found in approximately 36% of midline dermoids.
• Anterior meningocele
Sebaceous (Epidermoid) Cysts• Sebaceous (Epidermoid) Cysts• Synonyms: epidermal cysts and epidermoid cysts
• A harmless cyst, especially on the scalp or face, containing the fatty secretion of a sebaceous gland
• The term sebaceous cyst is a misnomer as these cysts are not of sebaceous origin. Analysis of the pattern of lipids has shown that they do not originate from the sebaceous glands but from proliferation of epidermal cells within the dermis.1
Epidermoid and Dermoid Cysts
Thanks to
• bms.brown.edu/.../Skin/DermoidCystEyebrow.jpg• www.facesplus.com/Pediatric_photos/dermoid_1a.jpg• http://www.choa.org/images/illustrations/derm.jpe• http://www.nature.com/eye/journal/v19/n2/thumbs/6701473f1th.jpg• http://www.vin.com/Images/Proceedings/WSAVA2002/Aor_125.jpg• http://www.ctonlineclinic.com/index.php5?action=minorops