Human cervicofacial mycetoma caused by Streptomyces griseus: First case report.

Streptomyces griseus causes subcutaneous mycetomas in felines and dolphins; however, human mycetoma caused by S. griseus has not previously been reported. Hereby, we report a case of a 50-year-old female presenting with swelling in the left upper cervical region and the left cheek that lasted for 6 months. The fine needle aspiration (FNA) performed on the swelling yielded purulent material; on microscopy, actinomycosis was diagnosed. On culturing, the pus grew S. griseus. To the best of our knowledge, this is the first reported case of human mycetoma caused by S. griseus.