title: [Benign schwannoma, a rare retroperitoneal tumour].
abstract: Primary retroperitoneal tumours are rare in adults. Among retroperitoneal tumours derived from nervous tissue, schwannoma is defined as a tumour arising from neurilemma or Schwann nerve sheath cells. It is a very rare tumour, especially in the retroperitoneal site (0.2%). Its diagnosis is immunohistological, and treatment is surgical, consisting of complete resection of the mass due to the risk of malignant degeneration. The authors report the case of a 38-year-old patient admitted with isolated right lumbar pain. Imaging (ultrasound and CT urography) revealed a retroperitoneal tumour measuring 6 x 9 cm. Resection was performed by right thoraco-pleuro-laparatomy. The immunological and histological study concluded on benign schwannoma. With a postoperative follow-up of two years, the patient has not presented any recurrence of this retroperitoneal schwannoma.
authors.affiliation: Service d'Urologie, CHU Sehloul, Sousse, Tunisie. khouni_has2002@yahoo.fr
authors.forename: Hassen
authors.initials: H
authors.lastname: Khouni
authors.forename: Robert
authors.initials: R
authors.lastname: Andrianne
authors.forename: Haddad
authors.initials: H
authors.lastname: Nidhal
authors.forename: Shriba
authors.initials: S
authors.lastname: Badreddine
authors.forename: Jean
authors.initials: J
authors.lastname: de Leval
authors.forename: Mosbah Ali
authors.initials: MA
authors.lastname: Faouzi
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D009442:Neurilemmoma / Q000175:diagnosis / Q000601:surgery; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis / Q000601:surgery