Abstract: Primary cutaneous nocardiosis by Nocardia farcinica  is exceedingly rare. Only six cases have been reported from PubMed in the past 15 years. We encounter such a case in a 55-year-old man receiving long-term steroid and cyclophosphamide. Owing to no characteristic symptoms, the disease can be so easily overlooked and causes fatal consequences. Therefore, we herein discuss common features of primary cutaneous nocardiosis by Nocardia farcinica  that remind clinicians considering it.
Keywords: Nocardia farcinica , cutaneous infection, primary cutaneous nocardiosis, abscess