Link to this page
Human Phenotype Ontology
Last uploaded:
January 16, 2025
Jump to:
| Id | http://purl.obolibrary.org/obo/HP_0200040
http://purl.obolibrary.org/obo/HP_0200040
|
|---|---|
| Preferred Name | Epidermoid cyst |
| Definitions |
Nontender, round and firm, but slightly compressible, intradermal or subcutaneous cyst measuring 0.5-5 cm in diameter. Epidermal cysts are intradermal or subcutaneous tumors, grow slowly and occur on the face, neck, back and scrotum. They usually appear at or around puberty, and as a rule an affected individual has one solitary or a few cysts.
A cyst is a cavity containing liquid, semisolid, or solid material. An epidermoid cyst is a benign cyst that develops out of ectodermal tissue and consists of a thin layer of squamous epithelium. An epidermal cyst may or may not be painful or release pus, and are usually noticed as a bump on the skin. Epidermal cysts and trichilemmal cysts are clinically indistinguishable. The wall of the epidermal cyst conserves the epidermal layers, but the wall of the trichilemmal cysts, which arise from the external root sheath, shows palisading of unlayered epithelial cells. Homogeneous horny material that is further degraded to fat and cholesterol forms within both types of cysts.
|
| Synonyms |
Sebaceous cyst
Epidermoid cysts
Infundibular cyst
Keratin cyst
Epidermal cyst
Epidermal inclusion cyst
|
| Type | http://www.w3.org/2002/07/owl#Class |
All Properties
| definition | Nontender, round and firm, but slightly compressible, intradermal or subcutaneous cyst measuring 0.5-5 cm in diameter. Epidermal cysts are intradermal or subcutaneous tumors, grow slowly and occur on the face, neck, back and scrotum. They usually appear at or around puberty, and as a rule an affected individual has one solitary or a few cysts. |
|---|---|
| label |
Epidermoid cyst
|
| comment |
A cyst is a cavity containing liquid, semisolid, or solid material. An epidermoid cyst is a benign cyst that develops out of ectodermal tissue and consists of a thin layer of squamous epithelium. An epidermal cyst may or may not be painful or release pus, and are usually noticed as a bump on the skin. Epidermal cysts and trichilemmal cysts are clinically indistinguishable. The wall of the epidermal cyst conserves the epidermal layers, but the wall of the trichilemmal cysts, which arise from the external root sheath, shows palisading of unlayered epithelial cells. Homogeneous horny material that is further degraded to fat and cholesterol forms within both types of cysts.
|
| prefLabel |
Epidermoid cyst
|
| database_cross_reference |
SNOMEDCT_US:419603000
SNOMEDCT_US:418630001
UMLS:C0014511
SNOMEDCT_US:419670003
SNOMEDCT_US:418323001
SNOMEDCT_US:419893006
SNOMEDCT_US:417992006
SNOMEDCT_US:399999000
See more
See less
|
| notation |
HP:0200040
|
| creation_date |
2010-06-18T02:08:02Z
|
| has_related_synonym |
Sebaceous cyst
Epidermoid cysts
|
| id |
HP:0200040
|
| has_obo_namespace |
human_phenotype
|
| subClassOf | |
| type | |
| terms_creator | |
| has_exact_synonym |
Infundibular cyst
Keratin cyst
Epidermal cyst
Epidermal inclusion cyst
|
| treeView |
Add comment
| Delete | Subject | Author | Type | Created |
|---|---|---|---|---|
| No notes to display |