Sporothrix Schenckii

Epidemiology

Often is isolated in soil and plants, so those jobs that involve handling predisposing infection. Infection occurs by inoculation of the fungus on the skin, usually through contaminated objects. With often found in the medical history of scrapes with plants with thorns, roses fundamental, wood, reeds, straw, or barns or sheds handling, grass, armadillos, etc. Sporotrichosis also been described after cat scratch, bite, parrot, dog bite, insect bite, fish handling, injuries due to metal or other trauma. In these cases the infection is probably due to contamination of the wound with the ground. The agency has also been isolated in animals such as horses and ants. It is also possible to transmit via contaminated clothing and even described a case of mother-child transmission by direct injury to the cheek mother (Davise, Pp. 12).

Geographic Location

Sporothrix schenckii is a dimorphic fungus that grows in filamentous form at temperatures below 37 ° C and in the form of yeast at 37 ° C in rich media and tissue parasites. In some patients, no lymphatic dissemination occurs during the evolution of the interference; the lesions observed remain localized at the site of initial inoculation. This damage is called localized coetaneous Sporotrichosis. Popular lesions, plaques and nodular lesions, veracious or ulcerated may appear on the face, neck, trunk or legs. Chronicity is frequent because of the absence of spontaneous resolution. Erythema nodosum is possible. This form of Sporotrichosis is almost always associated with immunosuppressant or debilitated land, whether due to alcoholism, diabetes, sarcoidosis, tuberculosis, grafting of organs, cancer, taking immunosuppressant's or AIDS. The clinical picture varies widely and can include ulcers, acne form lesions, indurate plaques or crusts. Pulmonary attacks are usually fatal (Carol, Pp. 35).

Reservoir of Etiologic Agent

The most common form of the disease, lympho-cutaneous Sporotrichosis is observed in more than 75% of cases. ...