Microsporum canis scalp ringworm: its primary or secondary ectothrix character

This study supports the view that, in cases of tinea capitis due to a Microsporum canis infection, ectothrix arthroconidium formation is extrapilary and arises from intrapilary hyphae. The hyphae of M. canis perforate and digest the hair cuticle to alter its appearance from a normally identifiable s...

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Published inScanning microscopy Vol. 7; no. 2; p. 671
Main Author Vismer, H F
Format Journal Article
LanguageEnglish
Published United States 01.06.1993
Subjects
Child
Dermatomycoses - microbiology
Dermatomycoses - pathology
Female
Hair - microbiology
Hair - ultrastructure
Humans
Microscopy, Electron, Scanning
Microsporum
Tinea Capitis - microbiology
Tinea Capitis - pathology
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Abstract This study supports the view that, in cases of tinea capitis due to a Microsporum canis infection, ectothrix arthroconidium formation is extrapilary and arises from intrapilary hyphae. The hyphae of M. canis perforate and digest the hair cuticle to alter its appearance from a normally identifiable structure of imbricated cells with a distal free border, to a grossly altered and pathological layer. Conidium production mainly takes place outside the hair shaft and forms thick clusters between the cuticular tiles. Finally, a shaft of conidia is formed around the hair. The cuticular covering of such a conidium sheath belongs to the root sheath of the hair follicle, and not to the hair structure proper.
AbstractList This study supports the view that, in cases of tinea capitis due to a Microsporum canis infection, ectothrix arthroconidium formation is extrapilary and arises from intrapilary hyphae. The hyphae of M. canis perforate and digest the hair cuticle to alter its appearance from a normally identifiable structure of imbricated cells with a distal free border, to a grossly altered and pathological layer. Conidium production mainly takes place outside the hair shaft and forms thick clusters between the cuticular tiles. Finally, a shaft of conidia is formed around the hair. The cuticular covering of such a conidium sheath belongs to the root sheath of the hair follicle, and not to the hair structure proper.
Author Vismer, H F
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Snippet This study supports the view that, in cases of tinea capitis due to a Microsporum canis infection, ectothrix arthroconidium formation is extrapilary and arises...
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StartPage 671
SubjectTerms Child
Dermatomycoses - microbiology
Dermatomycoses - pathology
Female
Hair - microbiology
Hair - ultrastructure
Humans
Microscopy, Electron, Scanning
Microsporum
Tinea Capitis - microbiology
Tinea Capitis - pathology
Title Microsporum canis scalp ringworm: its primary or secondary ectothrix character
URI https://www.ncbi.nlm.nih.gov/pubmed/8108682
Volume 7
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