Sporotrichosis classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Alison Leibowitz [2]

Overview

Sporotrichosis may be classified, according to the location of the lesions, into three subtypes: cutaneous, mucosal, and extracutaneous.

Classification

• Presentations vary based upon numerous factors, such as the patient’s immunological status, the severity and depth of the inoculum, and the particular strain’s thermal zone of tolerance and pathogenicity.

Cutaneous Forms

Cutaneous forms of Sporotrichosis typically manifest following minor epidermal trauma.

• Fixed form: Staying localized within the subcutaneous tissue, the fungus transforms into its yeast form.
• Lymphocutaneous form: The yeast form of S. schenckii extends through the nearby lymphatic vessels.