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Case Report: Cutaneous Leishmaniasis Misdiagnosed as Pyoderma Gangrenosum

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  • 1 Dermatology Unit, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy;
  • 2 Infectious Diseases Unit, Department of Medical and Surgical Sciences, St. Orsola Malpighi University Hospital, Bologna, Italy

ABSTRACT

With an estimated prevalence of 0.7%, pyoderma gangrenosum (PG) is the most frequent type of reactive skin lesions seen in the setting of inflammatory bowel disease, together with metastatic Crohn’s disease. However, in the case of persistent cutaneous ulcerations in patients with Crohn’s disease under biologic and/or immunosuppressive therapy, infectious or malignant etiologies should be excluded. We report a case of multiple difficult-to-treat skin ulcerations due to Leishmania in a patient with Crohn’s disease treated with antitumor necrosis factor-alpha drugs, misinterpreted for a long time as PG.

Author Notes

Address correspondence to Ambra Di Altobrando, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Via Massarenti 1, Bologna 40138, Italy. E-mail: ambra.dialtobrando@studio.unibo.it

Authors’ addresses: Ambra Di Altobrando, Cosimo Misciali, Beatrice Raone, and Valeria Gaspari, Dermatology Unit, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy, E-mails: ambra.dialtobrando@studio.unibo.it, cosimo.misciali@aosp.bo.it, beatrice.raone@libero.it, and gasparivaleria@yahoo.com. Luciano Attard, Infectious Diseases Unit, Department of Medical and Surgical Sciences, St. Orsola Malpighi University Hospital, Bologna, Italy, E-mail: luciano.attard@aosp.bo.it.

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