During the past few years, robotic surgical systems have been rapidly developed. The progress and advantages of these systems include three-dimensional vision and enhanced ergonomics. These advantages have helped a new generation of minimally invasive surgery to evolve. The da Vinci Surgical System seems to greatly resolve problems (e.g., wide exposure and retraction of peritoneal organs) that ...

Abstract Introduction Soft tissue leiomyosarcomas represents 0.7% of all malignant tumors. The most common location is the retroperitoneum, and appearance local or distant recurrences after resection not uncommon. Pathological study important to establish confirmatory diagnosis prognosis this type lesion. Clinical case We present clinical a patient with retroperitoneal leiomyosarcoma that was r...

Metastases from a variety of malignant tumors can involve the ureters, but ureteral involvement by lung cancer is extremely rare and usually described at autopsy. We report a rare case of a 76-year-old man who presented with a three-month history of right flank dullness and was noted to have a nonhomogeneous retroperitoneal mass with hydronephrosis of the right kidney on computed tomography of ...

BACKGROUND Although gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract, they comprise less than 1% of all gastrointestinal tumors. Neuroendocrine tumors (NET) of the gastro-enteropancreatic system are also rare, representing about 2% of all gastrointestinal neoplasms. Pancreatic localization of NET is extremely uncommon-these tumors are ...

Accessible online at: www.karger.com/journals/onk Fax +49 761 4 52 07 14 E-mail [email protected] www.karger.com Tumors of the pancreatic head are treated with partial duodenopancreatectomy, tumors of the corpus/tail region with a left-sided pancreatic resection and splenectomy. Because of consequently arising problems in connection with complete exoand endocrinological insufficiency, a tot...

BACKGROUND Mature cystic teratoma is one of the most common tumors of the ovaries; however, primary retroperitoneal lesions are rare entities in adults. CASE SUMMARY We report a case of a 33 year-old woman noticing a mass in her epigastric and left upper abdominal region without any specific signs and symptoms. Radiological evaluation revealed a retroperitoneal mass with extension from the po...

Retroperitoneal fibrosis is a rare fibrosing reactive process that may be confused with mesenteric fibromatosis. Abdominal aorta aneurysm is rare too and mostly develops secondary to Behcet's disease, trauma, and infection or connective tissue diseases. Incidence of aneurysms occurring as a result of atherosclerotic changes increases in postmenopausal period. Diagnosis can be established with a...

Although paraganglioma (PGL), an extra-adrenal retroperitoneal pheochromocytoma (PHEO), is a rare catecholamine-secreting neuroendocrine tumor, it can cause severe hypertensive crisis during anesthesia or surgery if undiagnosed preoperatively. Extraluminal perigastric masses may be presumed to be gastrointestinal stromal tumors (GISTs) or soft tissue sarcomas even when histologic confirmation i...

OBJECTIVE To report a case of GIST type retroperitoneal tumor with spontaneous rupture to the abdominal cavity causing acute abdomen secondary to hemoperitoneum. METHODS/RESULTS We report the case of an 84 year-old man with history of BPH and chronic atrial fibrillation. He presented to the Emergency Department with diffuse abdominal pain, syncope and accompanying vegetative symptoms. Diagnos...