<i>Streptomyces</i> species: A friend or foe? the diagnostic dilemma of cutaneous and mucocutaneous infections.

Keche, Archana; Mishra, Gargee; Patil, Girish; Ganguly, Satyaki; Ranjan, Swekcha · J Family Med Prim Care · 2025

case_series · Level IV

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Abstract

Mycetoma and various invasive forms of the disease are caused by etiological agents like <i>Nocardia, Actinomycetes, and Streptomyces</i> spp. <i>Streptomyces</i> spp. is notable for its production of antibiotics. However, it is also most commonly associated with actinomycetoma, especially <i>Streptomyces somaliensis (S</i>. <i>somaliensis)</i>, <i>Streptomyces griseus. (S</i>. <i>griseus), S</i>. <i>sudanensis</i>, and <i>S. viridis</i>. We present a series of cases with varied clinical presentations ranging from cutaneous nodules to plunging ranula in which <i>Streptomyces</i> spp have been isolated in culture with further species-level identification using MALDI-TOF.