Dermoid cyst Q84.87

Author: Prof. Dr. med. Peter Altmeyer

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Last updated on: 29.10.2020

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Synonym(s)

Dermoid; Epidermoid; teratoma benignum

Definition
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Benign embryonic tumour, formed as a product of all three cotyledons in the area of embryonic clefts.

Manifestation
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Especially childhood.

Localization
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Of dermatological relevance: nasal root, orbital region, mastoid process, fontanel region, floor of the mouth. More frequently dermoid cysts are found in other organs: ovaries, ENT region; testes, skull bones. S.a. Pilonidalsinus.

Clinical features
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1-4 cm large, smooth, roundish, subcutaneously located nodes.

Histology
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Rudimentary sebaceous glands, sweat glands, dental and hair systems, cartilage, keratin and bones in cavities lined with epidermis.

Complication(s)
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Carcinomatous transformations of the cyst contents are described.

Therapy
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Excision in toto with cyst sack epithelium, s.a. pilonidal sinus.

Progression/forecast
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Rarely malignant degeneration ( Teratoma malignum).

Literature
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  1. Koester MC, Amundson CL (2001) An Unusual Scalp Lesion in a 15-Year-Old Girl: A Case Report. J Athl Train 36: 182-184
  2. Onuigbo WI, Ezegwui IR (2001) Ophthalmic presentation of epidermoid cysts in an African community. Int Ophthalmol 24: 279-281
  3. Pinheiro AL et al (2003) Goldenhar's syndrome--case report. Braz Dent J 14: 67-70
  4. Tuz M et al (2003) Rapidly growing sublingual dermoid cyst throughout pregnancy. At J Otolaryngol 24: 334-337

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Please ask your physician for a reliable diagnosis. This website is only meant as a reference.

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Last updated on: 29.10.2020