TY - CHAP M1 - Book, Section TI - Sporotrichosis A1 - Zafren, Ken A1 - Thurman, R. Jason A1 - Jones, Ian D. A2 - Knoop, Kevin J. A2 - Stack, Lawrence B. A2 - Storrow, Alan B. A2 - Thurman, R. Jason Y1 - 2021 N1 - T2 - The Atlas of Emergency Medicine, 5e AB - Sporotrichosis is a fungal skin infection caused by Sporothrix schenckii, an organism primarily found on plants and flowers and in soil. The problem is common among gardeners and florists. It also affects those who handle animals, since the fungus may inhabit claws. Infection occurs when contaminated thorns, spines, or claws penetrate the victim’s skin. After an average incubation period of 3 weeks, localized infections become apparent. “Fixed” cutaneous infections are localized to the inoculation site and are manifest as 2- to 4-mm papules or nodules. They may ulcerate or become surrounded by raised erythema. They are typically painless. Progression to lymphocutaneous infections occurs in about 70% of cases. Patients present with a nodule at the site of penetration, with appearance of subcutaneous nodules and skip areas along lymphatic tracks later. The lesions may wax and wane over months to years. Patients with cutaneous sporotrichosis typically lack systemic symptoms. SN - PB - McGraw-Hill CY - New York, NY Y2 - 2024/11/08 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=1181051179 ER -