epidermoid cyst

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epidermoid cyst

[‚ep·ə′dər‚mȯid ′sist]
(medicine)
A cyst lined by stratified squamous epithelium without associated cutaneous glands.
References in periodicals archive ?
The histopathological examination revealed multiple epidermal cysts with a minimum size of 1.
Epidermal cyst of the breast mimicking malignancy: Clinical, radiological and histological correlation.
An epidermal cyst is either found incidentally or presents as a firm non-tender lump.
awakens the need for a double-check for all presumed acquired epidermal cysts in older individuals.
Epidermal cysts are slow growing benign lesions which originate from the epidermal layer of the skin.
In conclusion, epidermal cyst and squamous metaplasia even though it is not common, is found in fibroadenoma as reported in present case.
INTRODUCTION: Congenital cholesteatoma arises from the embryonic epidermal crest, is a benign Disease with slow progressive growth that destroys neighboring structures, it is considered an epidermal cyst originating from the remnants of squamous keratinized epithelium, the disease may appear in several regions of the temporal bone such as in the middle ear (most frequent site) as well as in the petrous apex, cerebellopontine angle, external acoustic meatus and mastoid process, congenital cholesteatoma of the mastoid process is the rarest form of presentation in the temporal bone, only 2 to 4% of cholesteatoma presenting to pediatric otologist are congenital in origin.
Involvement of the upper eyelid was more often noted in some pathologic lesions like epidermal cyst, papilloma, and dermoid cysts.
Less common pathologic conditions which can give rise to swelling in this region are due to thyroglossal cyst, branchial cyst, epidermal cyst and soft tissue tumors.
Breast sebaceous cyst is a type of epidermal cyst which forms as a collection of keratin like material most common on face, back and scalp but also occurs on the breast.
Chondroid syringoma may be confused clinically with epidermal cyst, pilar cyst, calcifying epithelioma, or a solitary trichoepithelioma.
This autosomal dominant disorder is characterized by intestinal polyposis, multiple osteomas, cutaneous fibromas, epidermal cysts, and impacted teeth.