The most common gastrointestinal involvement in neurofibromatosis is due to tumoral lesions which may present with gastrointestinal bleeding or obstruction. We report a case of concurrent ulcerative colitis and neurofibromatosis.A 39 year-old woman, known case of neurofibromatosis, was admitted to our department with complaint of chronic bloody diarrhea. After thorough clinical examination and paraclinical assessments, including colonoscopy and biopsy, ulcerative colitis was confirmed as the cause of gastrointestinal bleeding. Another rare finding in this patient was bilateral neurofibroma in psoas muscle that was detected on abdominal spiral Computer Tomography scan.
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