Microsporum canis is a zoophilic dermatophyte which is responsible for dermatophytosis in dogs and cats. The name refers to an asexual formtaxon that has been associated with four related biological species of fungi. Several synonyms are used, including ringworm of the scalp and. Tinea imbricata is a variant of tinea corporis that is caused by t. Microsporum canis or trichophytosis by trichophyton mentagrophytes and t. Microsporum is known to be a causative agent for dermatophytosis, cutaneous mycoses, tinea capitis and tinea corporis ringworm. Dermatophytosis, microsporum canis, trichophyton mentagrophytes, microsporum gypseum ringworm, fungal infection affectedanimals. This page was last edited on 18 december 2019, at 18. Cutaneous mycosis caused by microsporum canis has been a serious health problem in the world in recent years. The geographic distribution of the disease is shown in table 2682.
Tinea imbricata is best known in the pacific islands and melanesia, but reports of. Arthrodermataceae sinonimos microsporum audouinii microsporum. Tinea capitis is a disease caused by superficial fungal infection of the skin of the scalp, eyebrows, and eyelashes, with a propensity for attacking hair shafts and follicles see the image below. Nucleated, sporebearing nonchlorophyll producing organisms which generally reproduce sexually and asexually, and whose filamentous, branched somatic structures are typically surrounded by. Microsporum canis definition of microsporum canis by.
Etiologi spesies dermatofit umumnya dapat sebagai penyebab, kecuali e. It is part of a group of fungi known as dermatophytes. Files are available under licenses specified on their description page. Dermatophytosis was described independently by several scientists in the 1830s and 1840s, 1 but probable descriptions of ringworm date back to ancient greek times. This is typically caused by microsporum canisaudouinii. Dermatophytosis ringworm in chinchillas is most commonly caused by trichophyton mentagrophytes, although microsporum canis and microsporum gypseum have been incriminated in outbreaks of spontaneously occurring dermatophytosis. Dermatofita yang zoofilik terutama menyerang binatang, dan kadangkadang menyerang manusia, misalnya microsporum canis dan trichophyton verrucosum. The hair perforation test is a diagnostic test to differentiate these species from. Treatment of d ermatophytoses c aused b y microsporum. Microsporum canis, for which the natural hosts are cats and dogs, is the most prevalent zoophilic agent causing tinea capitis and tinea corporis in humans. Donnelly bvsc, diplomate aclam, in ferrets, rabbits, and rodents third edition, 2012. Feb 21, 2020 tinea capitis is a disease caused by superficial fungal infection of the skin of the scalp, eyebrows, and eyelashes, with a propensity for attacking hair shafts and follicles see the image below. Examples include trichophyton rubrum, trichophyton kanei, trichophyton schoenleini, trichophyton concentricum. As an important arm of innate immunity, the inflammasomes are intracellular multiprotein complexes that control.
Invaded hairs show an ectothrix infection and fluoresce a bright greenishyellow under woods ultraviolet light. Microsporum canis microsporum distrotum, microsporum equinum kucing, anjing, kuda. All structured data from the file and property namespaces is available under the creative commons cc0 license. Microsporum canis kucing dan anjing terdigitale babi dan kelinci anthropophilic host manusia patogenesis dapat bertahan hidup pada stratum korneum, yang mana sebagai sumber nutrisi dermatofit dan pertumbuhan jamur mycelium infeksi dermatofit melewati 3 tahap. The primary hosts of anthropophilic species are human beings but they may also cause infection in animals. The pathogenesis of tinea capitis due to microsporum. Prevalence of trichophyton, microsporum and epidermophyton. Text is available under the creative commons attributionsharealike license.
The genus microsporum includes some 17 species, of which 5 are primarily isolated from humans and 7 primarily from animals. Tinea kapitis pada bayi dan anak sunarso suyoso departemen smf kesehatan kulit dan kelamin fk. Nucleated, sporebearing nonchlorophyll producing organisms which generally reproduce sexually and asexually, and whose filamentous, branched somatic structures are typically surrounded by rigid cell walls. Because it is often circular, ringworm was once thought to be caused by a worm curling up in the tissue. Patients may be infected at any age, although infants and young children are most frequently affected. This fact makes this pathogen both anthrophilic and zoophilic in nature.
Microsporum and trichophyton species especially microsporum canis, microsporum gypseum, and. Microsporum canis is a zoophilic dermatophyte of worldwide distribution and is a frequent cause of ringworm in humans, especially children. The genus microsporum is now restricted to just three species. Pdf pathogenesis of dermatophytosis and tinea versicolor.
This dermatophyte was previously recovered from north american horses on several occasions, but was considered to be m. Mcanis is the most frequent fungal agent of cats and dogs and is also the most frequent agent of human tina capitis and often the agent of tina corporis. Microsporum infects the skin and the hair, but seldom infects nails. Selain sifat keratinofilik, setiap spesies dermatofita mempunyai afinitas terhadap hospes tertentu. Microsporum equinum was isolated in ontario, canada, from five human and two equine cases of ringworm infection. Pathogenic fungus microsporum canis activates the nlrp3. Pdf dermatomicosis por microsporum canis en humanos y. Members of microsporum and trichophyton cause illness in both humans and animals. In the united states the most common etiologic agent is t. They cause superficial infections of the scalp tinea capitis in humans and ringworm in cats and dogs.
The fungus can only live in dead keratin, the superficial layers of the skin. Soetomo pendahuluan tinea kapitis ringworm of the scalp and hair, tinea tonsurans, herpes tonsurans. Trichophyton tonsurans, microsporum gypseum microsporum canis the principal cause of ringworm in dogs and cats and a zoophilic fungal species of fungi causing sporadic dermatophytosis in humans, especially tinea capitis in children with cats and dogs. Trichophyton, 7 spesies microsporum dan satu spesies epidermofiton. The disease is considered to be a form of superficial mycosis or dermatophytosis.
The fungal skin disease dermatophytosis has come to be called ringworm. The organisms are usually readily seen on high power magnification on haematoxylineosin sections figures 2, 3. Its pathogeny spectrum is very wide and includes cats, dogs and humans. They belong to the family arthrodermataceae and are most. Microsporum definition of microsporum by medical dictionary.
Dermatophytosis, more commonly known as ringworm, is actually a fungal infection that has nothing to do with worms. The animal itself can be examined with the lamp in a dark room and the site of the lesions will fluoresce. Jan 08, 2019 microsporum canis culture characteristic. Microsporum canis is a pathogenic fungus distributed worldwide and has led to outbreaks of dermatophytosis in many areas during the recent decades 8, 9. Microsporum canis e o principal agente da dermatofitose em caes e gatos 12,30,44 e, em humanos, comumente representa o agente etiologico da tinea capitis provocando lesoes no couro cabeludo.
Prevalence of trichophyton, microsporum and epidermophyton species causing tinea capitis in children aged 314 years in mathare informal settlement, nairobi, kenya moto jedidah ndunge b. Dermatophyte identification chart hardy diagnostics. Dogs, cats, humans, horses, cows, and other mammals. Dermatophytosis is caused by pathogenic, keratindigesting fungi in the genera microsporum, trichophyton and epidermophyton. Though mostly well known for ringworm in pets and other animals, it is also known to infect humans. Hay, in mandell, douglas, and bennetts principles and practice of infectious diseases eighth edition, 2015. Pcr test for microsporum canis identification medical. Ifu10865a page 1 of 5 dermatophyte identification chart terms for the chart below fungi. The most common zoophilic dermatophyte that infects dogs and especially cats is microsporum canis. To defy pathogenic fungal infection, the host innate immune system is the first line of defense. Microsporum canis is a pathogenic, asexual fungus in the phylum ascomycota that infects the upper, dead layers of skin on domesticated cats, and occasionally dogs and humans.
Infection may also be caused rarely by the members of the genus candida and by nondermatophytic moulds belonging to the genera fusarium, scopulariopsis and aspergillus 3,4. The disease got the name ringworm because of the classic lesions, which resemble a red ring of inflamed skin with central healing. Microsporum canis is a parasitisch af da haut voakummanda puiz dermatophyt. There was also a case of a dermatophytoses outbreak caused by microsporum canis in gibbon monkey, caused by human contamination 15. Microsporum gypseum an overview sciencedirect topics. Microsporum gypseum is a soilassociated dermatophyte that occasionally is known to colonise and infect the upper dead layers of the skin of mammals. Trichophyton concentricum is the cause of the tropical infection known as tinea imbricata or tokelau. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Microsporum canis is a fungal species that causes numerous forms of disease. Microsporum canis is a pathogenic fungus with worldwide distribution that causes tinea capitis in animals and humans. Interestingly dermatophytic infections are predominant in the tropical and subtropical countries. Microsporum y trichophyton son patogenos humanos y animales. The pathogenesis of the disease is a complicated and untill nowadays not entirely known process.
In all actuality ringworm has nothing to do with worms. They cause superficial infections of the scalp tinea capitis in humans and. Dermatophyte identification chart terms for the chart below fungi. Dermatophytes were more fully characterized in the early 1900s by sabouraud. Ringworm can be transmitted between humans and animals. Microsporum canis microsporum canis is a fungal species that causes numerous forms of disease. Infection of this fungus causes microsporosis, which is a type of tinea capitis characterized by severe itching of the scalp, red scaly papules around hair shafts, and hairs breaking off 10. Microsporum canis microsporum distrotum, microsporum equinum kucing, anjing, kuda microsporum amazonicum tikus microsporum gallinae unggas. Since the publication of sabourauds remarkable work les teignes in 1910, little basic knowledge on ringworm of the scalp has accumulated.
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