@entity1823 are @entity5 arising from extra-adrenal chromaffine tissues. The diagnosis of @entity68653 and its surgical management can be difficult. We report a case of a retroperitoneal paragangliomaof an unusual localization that renders the surgery more challenging. A 40 year-old @entity1 presented to our department with a four-month history of upper @entity158 with no @entity391 , no fever, nor @entity1087 . Physical examination was normal. Ultrasonography showed a retro duodenal homogenous mass and computed tomographyscan showed a well-circumscribed round mass of heterogeneous density, which was in close contact with the aorta and the left kidney vein. Laboratory tests were normal. The @entity1 underwent surgical management. The surgical exploration found a retroperitoneal @entity5 that was encapsulated and showing intimate contact with the abdominal aorta. We performed a complete resection of the @entity5 . Histological examination of the surgical specimen revealed a @entity1823 . The post operative course was uneventful. @entity1823 are @entity5 . They can be asymptomatic for a long time and thus be diagnosed at late stage. A follow-up of @entity1 is then essential. Surgical treatment is the only radical treatment and should be performed even in @entity1823 in close contact with the great vessels.

An unusual localization of retroperitoneal XXXX : a case report.

@entity1 :: ('9606', 'Species') :: ['woman', 'patients', 'patient'] @entity1087 :: ('MESH:D007565', 'Disease') :: ['jaundice'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'rare tumors'] @entity391 :: ('MESH:D014839', 'Disease') :: ['vomiting'] @entity68653 :: ('MESH:C566831', 'Disease') :: ['non-functional retroperitoneal paraganglioma'] @entity158 :: ('MESH:D010146', 'Disease') :: ['quadrant pain'] @entity1823 :: ('MESH:D010235', 'Disease') :: ['Paragangliomas', 'paragangliomas', 'paraganglioma']
@entity1823 :: (MESH:D010235,Disease) :: ['paraganglioma']
