Cahiers Santé Médecine Thérapeutique


Pyoderma gangrenosum in chronic inflammatory bowel disease: Three new cases Volume 31, issue 3-4, Mai-Août 2022


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CHU Hassan II de Fès, Faculté de Médecine et de pharmacie de Fès Service de gastro-entérologie
* Tirés à part : H. Abid

Pyoderma gangrenosum (PG) is an ulcerative form of neutrophilic dermatosis of unknown etiology. It complicates 2 to 3% of inflammatory bowel diseases (IBD). Materials and methods: This is a descriptive monocentric retrospective study of 3 patients with PG associated IBD hospitalized in our hepatogastroenterology department between March 2014 and March 2018. The diagnosis of PG was based on histological study of cutaneous biopsies. Results: Among 176 patients followed for IBD, 3 patients had a PG associated with IBD (2 women and 1 man) i.e. 1.71%. The mean age of the patients was 44 years. The average duration of disease progression was 10 years. One patient had ulcerative colitis (UC) in procto-sigmoiditis, and the other two patients had Crohn’s disease (CD), with a fistulizing and stenosing ileal-colic form in one patient and colic form in the second case. PG was confirmed on skin biopsy in all our patients. In 2 patients, IBD preceded PG. All our patients received systemic corticosteroid therapy. Maintenance treatment was based on azathioprine alone in 2 cases and infliximab in one 1 case. Complete healing of PG was achieved in all patients. Conclusion: The association of PG and IBD is rare but severe and autonomous. The use of TNF-α antagonists have been reported to be effective for PG associated with IBD.