[Rare etiology of subocclusive syndrome: inflammatory fibroid polyp of the ileum, about a clinical case]. / Etiologie rare d'un syndrome subocclusif: polype fibrinoïde inflammatoire de l'iléon, à propos d'un cas clinique.

Inflammatory fibroid polyp (IFP) is a rare benign lesion, originating from the submucosa in the gastrointestinal tract. It generally appears as an isolated benign lesion, rarely located at the level of the ileum. Its origin is controversial. Clinical presentation varies depending on its location; invagination and obstruction are the most common indicative symptoms when the polyp is located at the level of the small intestine. We report the case of a 22-year old patient with abdominal pain, nausea and vomiting and a personal history of intermittent constipation and a weight loss during the previous year. Radiological imaging objectified ileo-ileal invagination completely obstructing the ileum light. Segmental resection of the obstructed ileal segment and termino-terminal anastomosis were performed. The final diagnosis of IFP was established using histological examination and immunohistochemical investigation.