Pictured: CT abdomen with contrast showed a new large left retroperitoneal hematoma measuring 17 x 9.3 x 8.2 cm. A 75-year-old woman was admitted to the hospital for increased dyspnea for 2 days. She ...

Retroperitoneal fibrosis occurs when tissue grows outside your abdominal cavity but not within your peritoneum (the membrane surrounding your organs of digestion). The tissue is generally localized ...

Liposarcomas are a rare type of malignancy with a very heterogeneous morphological appearance and clinical course. The therapeutic approach is based on histopathological classification and is ...

We identified 276 patients with primary retroperitoneal WDLS and 353 patients with primary retroperitoneal DDLS who underwent resection between July 1982 and July 2021 at our institution. WDLS ...

To describe a case of retroperitoneal lymphocele as an extremely rare complication after lumbar spine fracture. A 71-year-old man presented with severe intractable low back pain caused by a huge ...