abstract background: abdominal tumors are still a diagnostic problem in children. this study was conducted to assess the presentation and types of childhood intra abdominal tumors in children in shiraz. materials and methods: participants of this historical cohort study consisted of 298 children aged between 1.5 months to 15 years old who were diagnosed with abdominal mass between march 2003 an...

we present here a 32-year-old male with advanced lately diagnosed, right sided retroperitoneal mass, which had been already treated due to progressive muco-cutaneous lesions clinically consistent with psoriasis, during recent four years. the advanced retroperitoneal mass resected surgically and reported as hyaline-vascular castleman disease with a dense focus of coarse calcification, on histopa...

  Abdominal cystic lymphangioma is a rare benign neoplasm. Less than 1% of lymphangiomas is in the retroperitoneum. Lymphangioma is mostly asymptomatic. Chronic symptoms were reported in retroperitoneal type more than others. Acute symptoms due to complications like infection, cyst rupture or hemorrhage may occur. We report an 18-years-old girl with low back pain from 6 months ago with huge pel...

abdominal cystic lymphangioma is a rare benign neoplasm. less than 1% of lymphangiomas is in the retroperitoneum. lymphangioma is mostly asymptomatic. chronic symptoms were reported in retroperitoneal type more than others. acute symptoms due to complications like infection, cyst rupture or hemorrhage may occur. we report an 18-years-old girl with low back pain from 6 months ago with huge pelvi...

Retroperitoneal malignant mesenchymoma is a rare retroperitoneal neoplasm with poor prognosis. Here we present a patient with retroperitoneal malignant mesenchymoma. A 32year-old man presented with progressive painful swelling on his left lower leg, abdominal fullness and a palpable left abdominal mass. Imaging studies of abdomen included sonography, contrastenhanced computed tomography (CECT) ...

BACKGROUND Retroperitoneal lipoma is an extremely rare neoplasm. AIMS The authors report a case of giant retroperitoneal lipoma in a 32-year-old white female, with a history of pain and an abdominal mass over a 2-year period. Total abdominal ultrasonography and barium enema showed a large mass located in the retroperitoneal space behind the ascending colon. Laparotomy showed a large encapsula...

Wünderlich's syndrome is a spontaneous nontraumatic massive retroperitoneal hemorrhage. It is usually secondary to a renal neoplasm, with angiomyolipoma being the most frequent followed by renal cell carcinoma. The management of spontaneous retroperitoneal bleeding varies depending on the hemodynamic status of the patient. We present the first report of a transperitoneal laparoscopic nephrectom...