Skin cysts - Revision history

Mikael Häggström: /* Trichilemmal cyst */ Pilar

2021-07-30T00:40:25Z

Trichilemmal cyst: Pilar

← Older revision		Revision as of 20:40, 29 July 2021
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	===Trichilemmal cyst===		===Trichilemmal cyst===
	[[File:Histopathology of trichilemmal cyst - annotated.jpg\|thumb\|Trichilemmal cyst.]]		[[File:Histopathology of trichilemmal cyst - annotated.jpg\|thumb\|Trichilemmal cyst.]]
	The constitution of a trichilemmal cyst, from external (top) to internal (bottom):<ref>{{cite web\|url=https://www.medscape.com/answers/1058907-121502/which-histologic-findings-are-characteristic-of-trichilemmal-cyst-pilar-cyst\|title=Which histologic findings are characteristic of trichilemmal cyst (pilar cyst)?\|author=Anne Elizabeth Laumann\|website=Medscape}} Updated: Jun 11, 2020,</ref>		The constitution of a trichilemmal cyst (also called pilar cyst), from external (top) to internal (bottom):<ref>{{cite web\|url=https://www.medscape.com/answers/1058907-121502/which-histologic-findings-are-characteristic-of-trichilemmal-cyst-pilar-cyst\|title=Which histologic findings are characteristic of trichilemmal cyst (pilar cyst)?\|author=Anne Elizabeth Laumann\|website=Medscape}} Updated: Jun 11, 2020,</ref>
	*Fibrous capsule		*Fibrous capsule
	*Small, cuboidal, dark-staining basal epithelial cells in a palisade arrangement, with no distinct intercellular bridging		*Small, cuboidal, dark-staining basal epithelial cells in a palisade arrangement, with no distinct intercellular bridging

Mikael Häggström: Linked

2021-03-16T16:04:45Z

Linked

← Older revision		Revision as of 12:04, 16 March 2021
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	! Face		! Face
	\|		\|
	*Epidermoid cyst		*'''[[Epidermoid cyst ]]'''
	*Milium		*Milium
	*Pigmented follicular cyst (men)		*Pigmented follicular cyst (men)
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	! Scalp		! Scalp
	\|		\|
	*Epidermoid cyst		*'''[[Epidermoid cyst]]'''
	*Trichilemmal cyst		*Trichilemmal cyst
	:*Proliferating trichilemmal cyst		:*Proliferating trichilemmal cyst
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	! Trunk		! Trunk
	\|		\|
	*Epidermoid cyst		*'''[[Epidermoid cyst]]'''
	*Vellus hair cyst (chest)		*Vellus hair cyst (chest)
	*Steatocystoma		*Steatocystoma
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	\|		\|
	*Steatocystoma		*Steatocystoma
	*Epidermoid cyst		*'''[[Epidermoid cyst]]'''
	\|-		\|-
	! Preauricular		! Preauricular
	\|		\|
	*Ear pit cyst		*Ear pit cyst
	*Epidermoid cyst		*'''[[Epidermoid cyst]]'''
	\|-		\|-
	! Upper gluteal cleft and sacrococcygeal area		! Upper gluteal cleft and sacrococcygeal area
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	==Diagnoses==		==Diagnoses==
	===Epidermoid cyst===		===Epidermoid cyst===
			{{Main\|Epidermoid cyst}}
	[[File:Histopathology of epidermoid cyst.jpg\|thumb\|Epidermoid cyst]]		[[File:Histopathology of epidermoid cyst.jpg\|thumb\|Epidermoid cyst]]
	Also known as epidermal inclusion cyst (EIC) and sebaceous cyst.		Also known as epidermal inclusion cyst (EIC) and sebaceous cyst.

Mikael Häggström: Linked

2020-10-05T13:19:53Z

Linked

← Older revision		Revision as of 09:19, 5 October 2020
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	! Wrist (and generally other locations close to joints or tendon sheaths)		! Wrist (and generally other locations close to joints or tendon sheaths)
	\|		\|
	*Ganglion		*'''[[Ganglion cyst]]'''
	\| Walls composed of bland fibrous tissue.		\| Walls composed of bland fibrous tissue.
	\| [[File:Histopathology of ganglion cyst wall.jpg\|190px]]		\| [[File:Histopathology of ganglion cyst wall.jpg\|190px]]

Mikael Häggström: /* Absence of epithelium (pseudocyst) */ +wall

2020-09-09T21:28:57Z

Absence of epithelium (pseudocyst): +wall

← Older revision		Revision as of 17:28, 9 September 2020
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	*Ganglion		*Ganglion
	\| Walls composed of bland fibrous tissue.		\| Walls composed of bland fibrous tissue.
	\| [[File:~~Ganglion Cyst, Hand~~.jpg\|190px]]		\| [[File:Histopathology of ganglion cyst wall.jpg\|190px]]
	\|-		\|-
	! Scaphoid fossa of the ear		! Scaphoid fossa of the ear

Mikael Häggström: /* Absence of epithelium (pseudocyst) */ Generally

2020-08-14T14:09:40Z

Absence of epithelium (pseudocyst): Generally

← Older revision		Revision as of 10:09, 14 August 2020
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	\|		\|
	\|-		\|-
	! Wrist		! Wrist (and generally other locations close to joints or tendon sheaths)
	\|		\|
	*Ganglion		*Ganglion

Mikael Häggström: /* Trichilemmal cyst */ Specified

2020-08-12T23:45:19Z

Trichilemmal cyst: Specified

← Older revision		Revision as of 19:45, 12 August 2020
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	===Trichilemmal cyst===		===Trichilemmal cyst===
	[[File:Histopathology of trichilemmal cyst - annotated.jpg\|thumb\|Trichilemmal cyst.]]		[[File:Histopathology of trichilemmal cyst - annotated.jpg\|thumb\|Trichilemmal cyst.]]
	The constitution of a trichilemmal cyst, from external (top) to internal (bottom):<ref>{{cite web\|url=https://www.medscape.com/answers/1058907-121502/which-histologic-findings-are-characteristic-of-trichilemmal-cyst-pilar-cyst\|title=Which histologic findings are characteristic of trichilemmal cyst (pilar cyst)?\|author=Anne Elizabeth Laumann\|website=Medscape}} Updated: Jun 11, 2020,</ref>~~<br>-~~ Fibrous capsule~~<br>- Layer of small~~, cuboidal, dark-staining basal epithelial cells in a palisade arrangement, with no distinct intercellular bridging~~<br>-~~ Swollen pale keratinocytes, which increase in height ~~as they mature<br>-~~ Solid eosinophilic-staining keratin		The constitution of a trichilemmal cyst, from external (top) to internal (bottom):<ref>{{cite web\|url=https://www.medscape.com/answers/1058907-121502/which-histologic-findings-are-characteristic-of-trichilemmal-cyst-pilar-cyst\|title=Which histologic findings are characteristic of trichilemmal cyst (pilar cyst)?\|author=Anne Elizabeth Laumann\|website=Medscape}} Updated: Jun 11, 2020,</ref>
			*Fibrous capsule
			*Small, cuboidal, dark-staining basal epithelial cells in a palisade arrangement, with no distinct intercellular bridging
			*Swollen pale keratinocytes, which increase in height closer to the interior
			*Solid eosinophilic-staining keratin
	There is no granular cell layer (in contrast to an epidermoid cyst).		There is no granular cell layer (in contrast to an epidermoid cyst).
	{{Bottom}}		{{Bottom}}

Mikael Häggström: /* Trichilemmal cyst */ delinked

2020-08-12T23:44:00Z

Trichilemmal cyst: delinked

← Older revision		Revision as of 19:44, 12 August 2020
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	The constitution of a trichilemmal cyst, from external (top) to internal (bottom):<ref>{{cite web\|url=https://www.medscape.com/answers/1058907-121502/which-histologic-findings-are-characteristic-of-trichilemmal-cyst-pilar-cyst\|title=Which histologic findings are characteristic of trichilemmal cyst (pilar cyst)?\|author=Anne Elizabeth Laumann\|website=Medscape}} Updated: Jun 11, 2020,</ref><br>- Fibrous capsule<br>- Layer of small, cuboidal, dark-staining basal epithelial cells in a palisade arrangement, with no distinct intercellular bridging<br>- Swollen pale keratinocytes, which increase in height as they mature<br>- Solid eosinophilic-staining keratin		The constitution of a trichilemmal cyst, from external (top) to internal (bottom):<ref>{{cite web\|url=https://www.medscape.com/answers/1058907-121502/which-histologic-findings-are-characteristic-of-trichilemmal-cyst-pilar-cyst\|title=Which histologic findings are characteristic of trichilemmal cyst (pilar cyst)?\|author=Anne Elizabeth Laumann\|website=Medscape}} Updated: Jun 11, 2020,</ref><br>- Fibrous capsule<br>- Layer of small, cuboidal, dark-staining basal epithelial cells in a palisade arrangement, with no distinct intercellular bridging<br>- Swollen pale keratinocytes, which increase in height as they mature<br>- Solid eosinophilic-staining keratin

	There is no granular cell layer (in contrast to an [[epidermoid cyst]]).		There is no granular cell layer (in contrast to an epidermoid cyst).
	{{Bottom}}		{{Bottom}}

Mikael Häggström: /* Diagnoses */ +Trichilemmal cyst

2020-08-12T23:42:33Z

Diagnoses: +Trichilemmal cyst

← Older revision		Revision as of 19:42, 12 August 2020
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	*Abundant keratin flakes in cyst lumen		*Abundant keratin flakes in cyst lumen
	*Often giant cell granuloma in ruptured cysts, similar to foreign body granuloma		*Often giant cell granuloma in ruptured cysts, similar to foreign body granuloma

			===Trichilemmal cyst===
			[[File:Histopathology of trichilemmal cyst - annotated.jpg\|thumb\|Trichilemmal cyst.]]
			The constitution of a trichilemmal cyst, from external (top) to internal (bottom):<ref>{{cite web\|url=https://www.medscape.com/answers/1058907-121502/which-histologic-findings-are-characteristic-of-trichilemmal-cyst-pilar-cyst\|title=Which histologic findings are characteristic of trichilemmal cyst (pilar cyst)?\|author=Anne Elizabeth Laumann\|website=Medscape}} Updated: Jun 11, 2020,</ref><br>- Fibrous capsule<br>- Layer of small, cuboidal, dark-staining basal epithelial cells in a palisade arrangement, with no distinct intercellular bridging<br>- Swollen pale keratinocytes, which increase in height as they mature<br>- Solid eosinophilic-staining keratin

			There is no granular cell layer (in contrast to an [[epidermoid cyst]]).
	{{Bottom}}		{{Bottom}}

Mikael Häggström: Spelling

2020-08-12T22:49:58Z

Spelling

← Older revision		Revision as of 18:49, 12 August 2020
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	*Epidermoid cyst		*Epidermoid cyst
	*Trichilemmal cyst		*Trichilemmal cyst
	:*Proliferating ~~tricholemmal~~ cyst		:*Proliferating trichilemmal cyst
	\|-		\|-
	! Trunk		! Trunk

Mikael Häggström: /* Absence of epithelium (pseudocyst) */ wording

2020-07-08T21:23:45Z

Absence of epithelium (pseudocyst): wording

← Older revision		Revision as of 17:23, 8 July 2020
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	\|		\|
	*Ganglion		*Ganglion
	\| ~~The walls~~ composed of bland fibrous tissue.		\| Walls composed of bland fibrous tissue.
	\| [[File:Ganglion Cyst, Hand.jpg\|190px]]		\| [[File:Ganglion Cyst, Hand.jpg\|190px]]
	\|-		\|-