The retroperitoneum is a closed space harbouring vital organs including the great vessels, kidneys and adrenal glands, ureters, and the ascending and descending colon. Surgical management of retroperitoneal pathologies may need multiorgan resection in order to achieve complete surgical resection while preservation of surrounding organs should be attempted, especially in case of benign tumors. W...

BACKGROUND Inflammatory pseudotumors were mostly encountered in the lung. Retroperitoneal inflammatory pseudotumors are relatively rare. Although laparoscopic surgery with a modified flank position is widely performed for retroperitoneal tumors, we placed the patient in the supine position to maintain the normal anatomical view of the retroperitoneal space. We report a case of retroperitoneal i...

Primary retroperitoneal masses are a rare but important group of neoplasms. Cross-sectional imaging has revolutionised the investigation of patients with retroperitoneal neoplasms. Both computed tomography (CT) and magnetic resonance imaging (MRI) can contribute to tumour diagnosis, though histological confirmation is often required because of the considerable overlap of imaging features. Cross...

We report on two infants of 11 and 12 months of age, respectively, with large solid-cystic retroperitoneal tumors. Complete resection was achieved, and both children are doing well over a follow-up of more than 17 months. The presented paper focuses on surgical anatomy of this very rare type of tumor. Teratomas were located mainly within the upper abdominal cavity, and both tumors displaced the...

ganglioneuromas presented as a retroperitoneal tumor around the vital organs is a rare entity. a case with unusual presentation is reported. young woman of 44 years old presented without any complaint ,that known during incidental abdominopelvic ultrasonography. it was treated with partial resection for debulking surgery. debulking surgery with preservation of organ functions is feasible in the...

INTRODUCTION Cavernous hemangiomas are common benign tumors of the skin or liver but can also rarely originate from the retroperitoneal space, especially adjacent to the renal hilum. Qualitative characterization of these retroperitoneal tumors using available imaging modalities is relatively difficult. CASE PRESENTATION A 40-year-old Japanese woman was incidentally noted to have a round homog...

A case of retroperitoneal chronic expanding hematoma complicated with hydronephrosis, which was difficult to diagnose preoperatively, is reported. The patient was a 70-year-old man. An 18 cm mass was detected in the right retroperitoneal space on abdominal CT screening. There were small calcifications in the periphery of the mass that were strongly enhanced in the delayed phase of dynamic CT. T...

OBJECTIVE To verify the feasibility and safety of retroperitoneal laparoendoscopic single-site radical nephrectomy and assess the value of our proposed approach to search for renal artery. METHODS A total of 60 cases of retroperitoneal laparoendoscopic single-site radical nephrectomy were performed using our homemade single-port multi-channel device. An incision of 5-6 cm was cut forward from...

Objectives To study an uncommon life-threatening disease, spontaneous retroperitoneal and perirenal hemorrhage. Case descriptions A 69-year-old male presented with pain in the left waist and back of 1 month duration. The renal abscess was suspected by magnetic resonance imaging before operation. The perirenal hematoma was cleaned by operation. In another case, the patient had a functional sol...