We present the case of a 69 year old woman with a history of cholecystitis, who consulted for severe abdominal pain, nausea and vomiting. Abdominal CT showed duodenal obstruction caused by a gallstone, cholecystoduodenal fistula and pneumobilia, what is known as Bouveret's syndrome, a rare form of gallstone ileus. Additionally, she presented free duodenal and vesicular perforation to retroperit...

TECHNIQUE With the recent advent of single port laparoscopic surgery, a single access port (SILSTM; Covidien, Mansfield, MA, US) can be used to gain retroperitoneal access (Fig 1) and allow necrosectomy to be performed. During the procedure, irrigation with warmed 0.9% saline or low CO2 pressure (8mmHg) permits visualisation of the retroperitoneum, and standard laparoscopic graspers and a sucti...

The authors present a case of inflammatory malignant fibrous histiocytoma located in the left retroperitoneum. The tumor was resected enblock with kidney and suprarenal gland. During the resection the system of retractors called the pillars of Kocman was used which allowed wide exposure of the abdominal cavity. The tumor measured 23 x 17 x 10 cm with the left kidney and suprarenal incorporated....

RATIONALE Solitary fibrous tumor (SFT) is a rare mesenchymal tumor occurs in various sites. Malignant SFT in retroperitoneum is extremely rare. PATIENT CONCERNS We report a case of malignant retroperitoneal SFT in a 59-year-old man presented with right flank pain for 1 month. DIAGNOSES, INTERVENTIONS AND OUTCOMES A laparotomy and resection of the tumor were performed, the histopathologic an...

RATIONALE Teratoma with nephroblastoma is a rare disease. The most common site at which teratoma with nephroblastoma occurs is the kidney. The mechanisms underlying the development of teratoma with nephroblastoma have not been fully elucidated. PATIENT CONCERNS In the current report, we describe the clinical characteristics of a 3-year-old girl with a complaint of a painless abdominal mass in...

Congenital teratomas occur in extragonadal locations, the commonest site being the sacrococcygeal region. This report describes a rare case of antenatally detected, large, immature retroperitoneal teratoma. The diagnostic and therapeutic challenges of dealing with such a case have been discussed and the relevant literature reviewed. The recurrence of the tumor after gross surgical removal indic...

Schwannoma is a benign neurogenic tumor originating from Schwann cells. These produce the myelin sheath that covers peripheral nerves that are often affected. This latter localization is extremely rare, and only a few case reports can be found in the medical literature. Studies have shown that approximately 0.5% to 5% of schwannomas are retroperitoneal, constituting 0.2% of adrenal incidental t...

Soft tissue sarcomas are a heterogenous group of rare tumors arising from embryonic mesoderm. Almost 15% of such sarcomas arise in the retroperitoneum. Rhabdomyosarcoma and fibrosarcoma are the two most common histologic variants in the retroperitoneum. The prognosis for patients with retroperitoneal sarcomas (RPS) is relatively poor characterized by late locoregional recurrence as principal ca...