| retroperitoneal | <anatomy> Behind or posterior to the peritoneum. (11 Jan 1998) |
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| retroperitoneal adenopathy | <radiology> Ultrasound: increased echo most likely to be adenocarcinoma, decreased echo most likely to be lymphoma (12 Dec 1998) |
| retroperitoneal fibrosis | <radiology> Ureters tapered or obstructed, most severe at L4-5, ureters deviated medially, Treatment: symptomatic; steroids have ? long-term benefit Differential diagnosis: malignancy, lymphoma (especially Hodgkin's), metastasis from colon and breast, retroperitoneal sarcoma, drugs, methysergide (Sansert), haemorrhage, aortic aneurysm, trauma or surgery, inflammation, Crohn's disease, diverticulitis, pancreatitis, extravasated urine, radiation (12 Dec 1998) |
| retroperitoneal hernia | A hernia in the subperitoneal tissues. Synonym: retroperitoneal hernia, Treitz's hernia. (05 Mar 2000) |
| retroperitoneal liposarcoma | <radiology> Most common primary retroperitoneal tumour, rarely arises from lipoma, 95% of all fatty retroperitoneal tumours, 40-60 years; M>F, most radiosensitive sarcoma (32% 5-year survival) findings, CT, contrast enhancement, mixed density (fat and soft tissue elements), pseudocystic pattern: water density secondary to volume averaging, angio: hypovascular; no vessel dilation, capillary staining, laking sites for liposarcoma: lower extremity 45%, abdominal cavity and retroperitoneum 14%, trunk 14%, upper extremity 8%, head and neck 7% (12 Dec 1998) |
| retroperitoneal space | An area occupying the most posterior aspect of the abdominal cavity. It is bounded laterally by the borders of the quadratus lumborum muscles and extends from the diaphragm to the brim of the true pelvis, where it continues as the pelvic extraperitoneal space. (12 Dec 1998) |
Synonyms : Fibrosis, Inflammatory Perianeurysmal, Fibrosis, Perianeurysmal Inflammatory, Inflammatory Fibrosis, Perianeurysmal, Inflammatory Perianeurysmal Fibrosis, Ormond's Disease, Perianeurysmal Inflammatory Fibrosis, Chronic Periaortitides, Chronic Periaortitis
Synonyms : Neoplasm, Retroperitoneal, Neoplasms, Retroperitoneal, Retroperitoneal Neoplasm
Synonyms : Retroperitoneal Spaces, Space, Retroperitoneal, Spaces, Retroperitoneal
| retroperitoneal |
(RET-row-PAIR-ih-toe-NEE-ul) Having to do with the area outside or behind the peritoneum (the tissue that lines the abdominal wall and covers most of the organs in the abdomen).
Ãâó: www.seniormag.com/conditions/cancer/cancerglossary...
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| retroperitoneal |
Tissues in the space between the posterior body wall and the peritoneal cavity (containing the intestines).
Ãâó: www.backpain-guide.com/Glossary_Files/Glossary_Pag...
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| retroperitoneal space |
The potential space just behind the visceral peritoneum.
Ãâó: www.medlit.info/guests/glossary/glossR.htm
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| retroperitoneal a. |
subperitoneal a.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| retroperitoneal f. |
deposition of fibrous tissue in the retroperitoneal space, producing vague abdominal discomfort, and often causing blockage of the ureters, with resultant hydronephrosis and impaired renal function that may result in renal failure. Called also Ormond disease and perirenal fasciitis.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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