Enteric duplication cysts lacking anatomic association with the gastrointestinal tract are called isolated enteric duplication cysts (IEDCs). We present an atypical case of a retroperitoneal IEDC with a tortuous tubular complex shape that enfolded the surrounding retroperitoneal fat and mimicked a retroperitoneal teratoma. Multiplanar reconstruction images should be used to evaluate such a lesi...

Retroperitoneal liposarcoma is an infrequent, locally aggressive malignancy. We report two cases of huge retroperitoneal liposarcomas. The presence of a palpable abdominal mass was a common symptom of the two patients. Preoperative imaging study showed huge retroperitoneal tumors. Both patients underwent complete surgical resections, and a negative microscopic margin was achieved in both cases....

Retroperitoneal cystic mesothelioma is a very rare lesion. The pathogeny is unclear and establishing a preoperative diagnosis versus others retroperitoneal cystic lesions is difficult. Thus, with increasing experience in laparoscopic retroperitoneal surgery, the use of this approach for exploration of a retroperitoneal mass of unknown origin may provide an alternative to classic open surgery an...

idiopathic retroperitoneal fibrosis is a rare disorder of an unknown etiology characterized by an inflammatory proliferative fibrosing process that may involve the ureters in 80-100% of cases. â the present study was carried on a 38 years old man who was admitted to imam khomeini hospital with severe abdominal pain and renal failure. abdominal mri showed encasement of abdominal aorta and bilate...

INTRODUCTION Spontaneous retroperitoneal hemorrhage is a distinct clinical entity that can present as a rare life-threatening event characterized by sudden onset of bleeding into the retroperitoneal space, occurring in association with bleeding disorders, intratumoral bleeding, or ruptures of any retroperitoneal organ or aneurysm. The spontaneous form is the most infrequent retroperitoneal hemo...

CONTEXT Autoimmune pancreatitis is characterized by diffuse enlargement of the pancreas, diffuse irregular narrowing of the main pancreatic duct, severe lymphoplasmacytic infiltration and fibrosis of the pancreas. Retroperitoneal fibrosis may occasionally be associated with autoimmune pancreatitis. CASE REPORT We report a 77-year-old man with autoimmune pancreatitis associated with retroperit...

REIDBORD, H.W. & HAWK, W.A. (1965) Idiopathic retroperitoneal fibrosis and necrotizing vasculitis. Report of a case with autopsy findings and etiologic considerations. Cleveland Clinic Quarterly, 32, 19. RUST, J.A. & MAAS, H.E. (1967) Pelvic retroperitoneal fibrosis with response to prednisolone. American Journal of Obstetrics and Gynecology, 98, 654. SALDINO, R.M. & PALUBINSKAS, A.J. (1972) Me...

Patients with retroperitoneal sarcoma can present to a variety of clinicians with non-specific symptoms and retroperitoneal sarcomas can be incidental findings. Failure to recognize retroperitoneal sarcomas on imaging can lead to inappropriate management in non-specialist centers. Therefore it is critical that the possibility of retroperitoneal sarcoma should be considered with prompt referral ...

OBJECTIVE Whether retroperitoneal fat should be included in the measurement of visceral fat remains controversial. We compared the relationships of fat areas in peritoneal, retroperitoneal, and subcutaneous compartments to metabolic syndrome, adipokines, and incident hypertension and diabetes. METHODS We enrolled 432 adult participants (153 men and 279 women) in a community-based cohort study...

Hemophilia is one of the most common inherited coagulation disorder; with almost half of the cases presents in the neonatal period with bleeding episodes specially post circumcision, although family history is present in about two third cases. Retroperitoneal hemorrhage is a very rare presentation of hemophilia and to the best of our knowledge has not described yet, as initial presentation of h...