title: [Retroperitoneal Castleman disease].
abstract: Castleman disease or angiofollicular lymph node hyperplasia is a rare disease of unknown cause with polymorphic clinical features that raises many diagnostic and therapeutic problems. The unifocal, localized, pseudoneoplastic form, first described in 1956, has a good prognosis, but the multifocal form has a more aggressive course. Three histological types have been identified: hyaline vascular, plasma cell and mixed. The authors present a case of hyaline vascular unifocal Castleman disease. A retroperitoneal mass was discovered incidentally during follow-up ultrasound examination in a 38-year-old woman treated for recurrent renal stones. On CT examination, a solid mass measuring 9 x 8 x 6 cm raised a problem of differential diagnosis with other retroperitoneal masses. CT-guided biopsy was inconclusive and the diagnosis was finally established by tumour excision and histological examination. The immediate and subsequent postoperative course was uneventful.
authors.affiliation: Service d'Anatomie et Cytologie pathologiques, CHU Charles Nicolle, Tunis, Tunisie. Abdelfatteh1@yahoo.fr
authors.forename: Abdelfatteh
authors.initials: A
authors.lastname: Zeddini
authors.forename: Rachida
authors.initials: R
authors.lastname: Zermani
authors.forename: Soumaya
authors.initials: S
authors.lastname: Rammeh
authors.forename: Nadia
authors.initials: N
authors.lastname: Kourda
authors.forename: Faten
authors.initials: F
authors.lastname: Farah
authors.forename: Sarrah Baltagi
authors.initials: SB
authors.lastname: Ben Jilani
mesh_terms: D000328:Adult; D005871:Castleman Disease / Q000473:pathology*; D005260:Female; D006801:Humans; D012187:Retroperitoneal Space