Favus


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favus

[′fā·vəs]
(medicine)
A fungal infection of the scalp, usually caused by Trichophyton schoenleini, characterized by round, yellow, cup-shaped crusts having a peculiar mousy odor. Also known as tinea favosa.

Favus

 

a skin disease that is caused by a fungus of the genus Achorion. Favus usually spreads through direct contact with sick persons or infected objects, more rarely through contact with such animals as cats, rats, or mice. Children are especially susceptible. In most cases the scalp is affected, although the smooth skin and nails are other possible sites of infection. Crusty, yellow, compact, saucer-shaped formations, which are called scutula and which have an unpleasant mousy odor, surround a central hair; they form within the horny layer of the epidermis and consist of pure cultures of the fungus. Hair easily falls out from the affected areas and is lackluster, ashy gray, and dry. The scutula leave atrophic scars over which hair cannot grow back. Scutula also can appear on smooth skin, but these do not develop into atrophic scars. Affected nails are usually thickened, nodular, yellow, and brittle. The treatment for favus is the same as for superficial trichophytosis.


Favus

 

(in animals), a fungal infection caused in birds by Trichophyton gallinae (Achorion gallinae) and in mammals by T. quinckeanum, which is also pathogenic for man. The fungus and its spores are transmitted by direct contact and by grooming implements. Mice and rats transmit favus to dogs, cats, and rabbits.

Among birds, the young of chickens and turkeys are most commonly affected. A dry, thick whitish gray layer consisting of the mycelium and spores of the fungus appears on the comb and wattles. In advanced stages of the disease, the feathers on the breast and head are affected and bald spots appear; the birds become emaciated and die. In cats, dogs, and rabbits, thick, dry whitish yellow crusts called scutula form on the head and occasionally on the body. The hair becomes dry and falls out. The fungus is sometimes localized in the claws.

Commercially valuable animals and birds are treated with phenol solution, Creolin, or a 2-percent solution of Formalin. Favus is prevented by isolating infected animals, exterminating rodents, killing acutely infected birds and animals, and disinfecting the animals’ and birds’ quarters.

REFERENCE

Kashkin, P. N. Dermatomikozy (cheloveka i zhivotnykh), 3rd ed. Leningrad, 1967.

V. P. KOROLEVA

favus

A tile or slab of marble cut into a hexagonal shape, so as to produce a honeycomb pattern in pavements.
References in periodicals archive ?
Black dot, Kerion (Figure-2), Favus, Diffuse pustular, and Diffuse Scale variety were seen in receding order of frequencies.
77 Family history Positive 7 1 1 Negative 26 10 8 Animal contact Positive 0 2 8 Negative 33 9 1 Associated systemic diseases or infections Hepatitis C 15 1 3 virus infection Diabetes 7 2 3 mellitus Internal 2 1 0 malignancy Rheumatoid 1 0 0 arthritis Chronic renal 1 0 1 disease Ulcerative 1 0 0 colitis Associated fungal infection Positive 12 4 1 Negative 21 7 8 Clinical presentation Alopecia 13 0 0 Scaly scalp 19 0 3 Favus 0 0 0 Pyoderma 1 5 2 Folliculitis 0 1 0 decalvans Pustular 0 2 1 eruption Acne 0 3 3 keloidalis Location Vertex 9 0 2 Parietal 11 1 3 Temporal 8 4 2 Occipital 3 4 1 Multiple 2 2 1 Trichophyton Total (n schoenleini (n = 58) = 5) Sex Male 2 9 (15.
Favus will become the seventh independent research provider to join Instinet Access and will benefit from the broker's sales and marketing services.
Dawson-Hughes B, Tosteson ANA, Melton LJ, Baim S, Favus MJ, Khosla S, Lindsay L.
El favus, que en el siglo XIX era una enfermedad que presentaba alta prevalencia, ha ido disminuyendo en su frecuencia a traves del tiempo, encontrandose prevalencias inferiores del 1% en la poblacion; este cambio se ha asociado con mejoria en el nivel socioeconomico de las personas (51).
Terrence Powderly, Commissioner-General of Immigration, charged, "If in future [sic] we should have occasion to trace the cause why our people are hairless and sightless through Favus and Trachoma, we should have ourselves to blame.
En el favus esta la presencia de artroconidias y espacios de aire dentro del cuerpo del pelo.
This comprehensive text was the brainchild of Murray Favus, who with a dedicated editorial board had volunteered countless hours to produce four editions of this much-used volume between 1990 and 1999.
A printing rep can advise you on the limitations and capabilities of printing and binding equipment, says Mark Favus, marketing manager at Alden Press, Elk Grove Village, IL, not to mention help you lessen postal costs via paper weight, catalog size and co-mingling of your mailings with other catalogers'.
Table 1: Age-wise distribution 1-10 11-20 21-30 31-40 40-50 >50 years years years years years years 29 07 05 06 02 02 Table 2: Clinical Presentation Isolates Grey patch Black dot Favus T.
Favus M J, 4th ed, Lippincott Williams and Wilkins, Philadelphia, PA, p: 315-19.