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Sporotrichosis on the arm

Sporotrichosis on the arm

Overview

Sporotrichosis is a fungal infection that frequently occurs following a minor injury while gardening or farming. Spores, which live in vegetation, enter the skin and begin to grow. The fungus follows the lymph channels up the extremity. Granulomatous lesions develop along the lymph channel, ulcerate, and drain. If left untreated, this condition can persist for years.

Review Date 3/16/2024

Updated by: Jatin M. Vyas, MD, PhD, Roy and Diana Vagelos Professor in Medicine, Columbia University Vagelos College of Physicians and Surgeons, Division of Infectious Diseases, Department of Medicine, New York, NY. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.