Dermatophytes - Revision history

Aidan at 16:48, 2 January 2024

2024-01-02T16:48:49Z

@@ Line 27: / Line 27: @@
 ** Can invade immunocompromised patients, e.g. Majocchi's granuloma and kerion
 * Named by anatomic location
-** Tinea capitis: head
+** Tinea capitis: scalp hair
 ** Tinea corporis: body
 ** Tinea cruris: groin
-** Tinea unguun: nails
+** Tinea unguium or [[onychomycosis]]: nails
 == Diagnosis ==
@@ Line 59: / Line 62: @@
 ** Macroconidia, microconidia, septae
 [[Category:Fungi]]
 [[Category:Skin and soft tissue infections]]

Aidan: capitalization

2022-09-26T14:16:14Z

capitalization

← Older revision		Revision as of 14:16, 26 September 2022
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	* Risk depends on the specific mold and its natural environment (humans, animals, or soil)		* Risk depends on the specific mold and its natural environment (humans, animals, or soil)

	=== Anthropophilic ~~dermatophytes~~ ===		=== Anthropophilic Dermatophytes ===
	* Most common worldwide is ''[[Trichophyton rubrum]]''		* Most common worldwide is ''[[Trichophyton rubrum]]''
	* Others include ''[[Trichophyton concentricum]]'', ''[[Trichophyton interdigitale]]'', ''[[Trichophyton schoenleinii]]'', ''[[Trichophyton soudanense]]'', ''[[Trichophyton tonsurans]]'', ''[[Trichophyton violaceum]]'', ''[[Microsporum audouinii]]'', ''[[Microsporum ferrugineum]]'', and ''[[Epidermophyton floccosum]]''		* Others include ''[[Trichophyton concentricum]]'', ''[[Trichophyton interdigitale]]'', ''[[Trichophyton schoenleinii]]'', ''[[Trichophyton soudanense]]'', ''[[Trichophyton tonsurans]]'', ''[[Trichophyton violaceum]]'', ''[[Microsporum audouinii]]'', ''[[Microsporum ferrugineum]]'', and ''[[Epidermophyton floccosum]]''
	* Risk factors include areas where people share common facilities, such as military camps and factories		* Risk factors include areas where people share common facilities, such as military camps and factories

	=== Zoonotic ~~dermatophytes~~ ===		=== Zoonotic Dermatophytes ===
	* Of zoonotic dermatophytes, ''[[Microsporum canis]]'' is the most common worldwide		* Of zoonotic dermatophytes, ''[[Microsporum canis]]'' is the most common worldwide
	* Other zoonotic dermatophytes include ''[[Trichophyton benhamiae]]'' (guinea pigs), ''[[Trichophyton erinacei]]'' (hedgehogs), ''[[Trichophyton quinum]]'' (horses), ''[[Trichophyton mentagrophytes]]'' (rodents), ''[[Trichophyton quinckeanum]]'' (mice), ''[[Trichophyton simii]]'' (monkeys), ''[[Trichophyton verrucosum]]'' (cattle ringworm), ''[[Nannizzia nana]]'' (pigs), and ''[[Nannizzia persicolor]]'' (bank voles)		* Other zoonotic dermatophytes include ''[[Trichophyton benhamiae]]'' (guinea pigs), ''[[Trichophyton erinacei]]'' (hedgehogs), ''[[Trichophyton quinum]]'' (horses), ''[[Trichophyton mentagrophytes]]'' (rodents), ''[[Trichophyton quinckeanum]]'' (mice), ''[[Trichophyton simii]]'' (monkeys), ''[[Trichophyton verrucosum]]'' (cattle ringworm), ''[[Nannizzia nana]]'' (pigs), and ''[[Nannizzia persicolor]]'' (bank voles)
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	== Diagnosis ==		== Diagnosis ==
	=== Specimen ~~collection~~ ===		=== Specimen Collection ===
	* Hair: need the root, with sterile forceps		* Hair: need the root, with sterile forceps
	* Skin: disinfect with alcohol or sterile water, then scrape the border with a blunt scalpel		* Skin: disinfect with alcohol or sterile water, then scrape the border with a blunt scalpel
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	** Incubate for 2-3 weeks at 30ºC		** Incubate for 2-3 weeks at 30ºC

	=== ~~Indentification~~ ===		=== Identification ===
	* Chemical properties		* Chemical properties
	** Growth at 37ºC		** Growth at 37ºC

Aidan: Text replacement - "Clinical Presentation" to "Clinical Manifestations"

2020-07-14T23:29:41Z

Text replacement - "Clinical Presentation" to "Clinical Manifestations"

← Older revision		Revision as of 23:29, 14 July 2020
Line 22:		Line 22:
	* More common in gardeners and farmers		* More common in gardeners and farmers

	== Clinical ~~Presentation~~ ==		== Clinical Manifestations ==
	* '''Ringworm'''		* '''Ringworm'''
	** Most active form is in the periphery of the ring		** Most active form is in the periphery of the ring

Aidan: added more background

2020-05-27T00:22:07Z

added more background

@@ Line 1: / Line 1: @@
-== Presentation ==
+=== Epidemiology ===
 ** Most active form is in the periphery of the ring
 ** Can invade immunocompromised patients, e.g. Majocchi's granuloma and kerion

Aidan at 01:32, 31 January 2020

2020-01-31T01:32:11Z

← Older revision		Revision as of 01:32, 31 January 2020
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	== Species and Classification ==		== Species and Classification ==
			* Three common genii: ''Epidermophyton'', ''Microsporum'', and ''Trichophyton''

	* Three common genii:
	** Epidermophyton
	** Microsporum
	** Trichophyton
	* Three categories: anthropophilic, zoophilic, and geophilic		* Three categories: anthropophilic, zoophilic, and geophilic

	== Presentation ==		== Presentation ==
		⚫	* Clinical presentation is usually as '''ringworm'''

		⚫	** Most active form is in the periphery of the ring
⚫	* Clinical presentation is usually ringworm
⚫	** Most active form in the periphery of the ring
	** Can invade immunocompromised patients, e.g. Majocchi's granuloma and kerion		** Can invade immunocompromised patients, e.g. Majocchi's granuloma and kerion
	* Named by anatomic location		* Named by anatomic location
Line 19:		Line 14:

	== Diagnosis ==		== Diagnosis ==

	=== Specimen collection ===		=== Specimen collection ===

	* Hair: need the root, with sterile forceps		* Hair: need the root, with sterile forceps
	* Skin: disinfect with alcohol or sterile water, then scrape the border with a blunt scalpel		* Skin: disinfect with alcohol or sterile water, then scrape the border with a blunt scalpel
Line 27:		Line 20:

	=== Laboratory Testing ===		=== Laboratory Testing ===

	* Direct microscopy: KOH (potassium hydroxide) calcofluor of skin scraping, under UV light		* Direct microscopy: KOH (potassium hydroxide) calcofluor of skin scraping, under UV light
	* Culture with Littman agar w streptomycin, Sabouraud agar with chloram+gent, Sabouraud agar with CG+cyclohexamide		* Culture with Littman agar w streptomycin, Sabouraud agar with chloram+gent, Sabouraud agar with CG+cyclohexamide
Line 33:		Line 25:

	=== Indentification ===		=== Indentification ===

	* Chemical properties		* Chemical properties
	** Growth at 37ºC		** Growth at 37ºC

Aidan at 19:31, 15 August 2019

2019-08-15T19:31:25Z

← Older revision		Revision as of 19:31, 15 August 2019
Line 1:		Line 1:
	= Species and Classification =		== Species and Classification ==

	* Three common genii:		* Three common genii:
Line 7:		Line 7:
	* Three categories: anthropophilic, zoophilic, and geophilic		* Three categories: anthropophilic, zoophilic, and geophilic

	= Presentation =		== Presentation ==

	* Clinical presentation is usually ringworm		* Clinical presentation is usually ringworm
Line 18:		Line 18:
	** Tinea unguun: nails		** Tinea unguun: nails

	= Diagnosis =		== Diagnosis ==

	== Specimen collection ==		=== Specimen collection ===

	* Hair: need the root, with sterile forceps		* Hair: need the root, with sterile forceps
Line 26:		Line 26:
	* Nails: alcohol gauze to clean, then scrape subungual debris		* Nails: alcohol gauze to clean, then scrape subungual debris

	== Laboratory Testing ==		=== Laboratory Testing ===

	* Direct microscopy: KOH (potassium hydroxide) calcofluor of skin scraping, under UV light		* Direct microscopy: KOH (potassium hydroxide) calcofluor of skin scraping, under UV light
Line 32:		Line 32:
	** Incubate for 2-3 weeks at 30ºC		** Incubate for 2-3 weeks at 30ºC

	== Indentification ==		=== Indentification ===

	* Chemical properties		* Chemical properties

Aidan at 03:58, 15 August 2019

2019-08-15T03:58:12Z

← Older revision		Revision as of 03:58, 15 August 2019
Line 1:		Line 1:
		⚫	= Species and Classification =
	= Dermatophytes =

⚫	== Species and Classification ==

	* Three common genii:		* Three common genii:
Line 9:		Line 7:
	* Three categories: anthropophilic, zoophilic, and geophilic		* Three categories: anthropophilic, zoophilic, and geophilic

	== Presentation ==		= Presentation =

	* Clinical presentation is usually ringworm		* Clinical presentation is usually ringworm
Line 20:		Line 18:
	** Tinea unguun: nails		** Tinea unguun: nails

	== Diagnosis ==		= Diagnosis =

	=== Specimen collection ===		== Specimen collection ==

	* Hair: need the root, with sterile forceps		* Hair: need the root, with sterile forceps
Line 28:		Line 26:
	* Nails: alcohol gauze to clean, then scrape subungual debris		* Nails: alcohol gauze to clean, then scrape subungual debris

	=== Laboratory Testing ===		== Laboratory Testing ==

	* Direct microscopy: KOH (potassium hydroxide) calcofluor of skin scraping, under UV light		* Direct microscopy: KOH (potassium hydroxide) calcofluor of skin scraping, under UV light
Line 34:		Line 32:
	** Incubate for 2-3 weeks at 30ºC		** Incubate for 2-3 weeks at 30ºC

	=== Indentification ===		== Indentification ==

	* Chemical properties		* Chemical properties
Line 50:		Line 48:
	* Microscopic features		* Microscopic features
	** Macroconidia, microconidia, septae		** Macroconidia, microconidia, septae

			[[Category:Fungi]]
			[[Category:Skin and soft tissue infections]]
			[[Category:Rashes and skin lesions]]

Aidan: Aidan moved page Skin and soft tissue Dermatophytes to Dermatophytes without leaving a redirect

2019-08-15T03:57:38Z

Aidan moved page Skin and soft tissue Dermatophytes to Dermatophytes without leaving a redirect

← Older revision	Revision as of 03:57, 15 August 2019
(No difference)

Maintenance script: Imported from text file

2019-08-11T18:05:58Z

Imported from text file

New page

= Dermatophytes =

== Species and Classification ==

* Three common genii:
** Epidermophyton
** Microsporum
** Trichophyton
* Three categories: anthropophilic, zoophilic, and geophilic

== Presentation ==

* Clinical presentation is usually ringworm
** Most active form in the periphery of the ring
** Can invade immunocompromised patients, e.g. Majocchi's granuloma and kerion
* Named by anatomic location
** Tinea capitis: head
** Tinea corporis: body
** Tinea cruris: groin
** Tinea unguun: nails

== Diagnosis ==

=== Specimen collection ===

* Hair: need the root, with sterile forceps
* Skin: disinfect with alcohol or sterile water, then scrape the border with a blunt scalpel
* Nails: alcohol gauze to clean, then scrape subungual debris

=== Laboratory Testing ===

* Direct microscopy: KOH (potassium hydroxide) calcofluor of skin scraping, under UV light
* Culture with Littman agar w streptomycin, Sabouraud agar with chloram+gent, Sabouraud agar with CG+cyclohexamide
** Incubate for 2-3 weeks at 30ºC

=== Indentification ===

* Chemical properties
** Growth at 37ºC
** Urease production/urea hydrolysis
** BCP-MSG reaction (important)
** Hair perforation test
** Vitamin requirements with trichophyton agars T1 to T7
** Growth on polished rice grain
* Colony features
** Speed of growth
** Colour on surface
** Texture
** Colour on reverse
* Microscopic features
** Macroconidia, microconidia, septae