Primary adenocarcinoma of an ileostomy in a Crohn patient: a case report.

Proctocolectomy with ileostomy is an established surgical treatment in patients with inflammatory bowel disease. Adenocarcinoma of an ileostomy is a rare complication in long-term ileostomies. We present the case of a 69-year-old man who presented with bloody stools and a tumour at the ileostomy site 37 years after ileostomy formation. Biopsies confirmed the presence of an adenocarcinoma. Imaging did not show any metastases or advanced local infiltration. A resection of the ileostomy with a broad safety margin and reimplantation of a new Ileostomy was performed. At 18-month follow-up, there is no sign of recurrence. Ileostomy adenocarcinoma in a Crohn's disease patient is rare with only four cases described in literature. An en-bloc resection and relocation of the ileostomy is the recommended treatment. Education of patients and healthcare professionals on this long-term ileostomy complication is vital for the early diagnosis and treatment.