Case report: solid-pseudopapillary tumour of the pancreas associated with dorsal agenesis.

Solid-pseudopapillary tumour of the pancreas is a rare benign or low-grade malignant epithelial tumour; its association with pancreatic dorsal agenesis has been reported only once before. We present the radiological and histological findings of a case of pancreatic solid-pseudopapillary tumour associated with total pancreatic dorsal agenesis. A 49-year-old woman presented with abdominal pain radiating to the back for several months. Radiological findings showed absence of the dorsal pancreas and an 8 cm x 6 cm diameter tumour arising from the head of the pancreas. She underwent successful complete resection of the tumour. Histopathology revealed a diagnosis of solid-pseudopapillary tumour.

Radiological findings of primary retroperitoneal synovial sarcoma.

Synovial sarcomas are most commonly localized in the extremities, especially the lower thigh and knee areas. Retroperitoneal synovial sarcoma is very rare. We describe the radiological and pathological findings of an adult retroperitoneal synovial sarcoma.

Lipidized or lipomatous meningioma, which is more appropriate? A case report.

Lipoblastic, lipomatous or lipidized meningioma is an unusual extra-axial benign tumor. It shows benign clinical features and has a good prognosis after surgical excision. We present a 54-year-old woman with intracranial lipidized meningioma in the right temporal fossa, discuss the importance of the differential diagnosis among similar tumors and discuss the term 'Lipidized meningioma' in the light of the literature.

Morgagni hernia: diagnosis with multidetector computed tomography and treatment.

PURPOSE: We aimed to retrospectively evaluate morbidity, mortality and treatment outcomes in 12 cases of Morgagni hernia diagnosed with multidetector computed tomography (MDCT) and treated appropriately. METHODS: This is a retrospective study and data on the demographics, presenting symptoms, MDCT images, operative approach, morbidity and mortality were collected from hospital records. RESULTS: Of 12 patients with a mean age of 60 years, ten were female. The diagnosis was made with MDCT before surgery. All hernias were unilateral and located in the right part of the thorax. The contents of the hernias were omentum and colon in the majority of the patients, and the contents of the hernia as diagnosed with CT was confirmed at surgery. Six patients had surgery. Of these, one had emergency surgery for hernia, two laparoscopic hernia repair, three transabdominal repair and one transthoracic repair. CONCLUSIONS: MDCT is a good imaging technique to be used before surgery in that it is fast and non-invasive, helps to make an accurate diagnosis of Morgagni hernias and provides detailed information about the contents of the hernia and accompanying complications. Modern surgical techniques, including laparoscopy, help to achieve the repair of Morgagni hernias safely with short hospital stay and with little morbidity and mortality.

Milk of calcium collection in the differential diagnosis of giant renal calculus.

A 29-year-old man presented with milk of calcium that completely filled the right-sided renal collecting system and ureter and was thought to be a giant renal calculus. Plain radiographs and computed tomographic findings of this rarity, which has not been reported previously, are reviewed.

Gastrointestinal stromal tumours: CT findings.

The aim of this study was to identify the predictors of malignancy and to demonstrate the uncommon radiological features of gastrointestinal stromal tumours (GIST) using CT. 30 patients participated in this retrospective study. CT findings were evaluated by two radiologists, and categorical variables were compared using chi(2) or Fisher's exact tests. These tests were used to assess any possible relationships between mitotic index and (i) tumour location, size, contour and growth status, (ii) presence of calcifications, necrosis or lymphadenopathy, (iii) enhancement pattern, (iv) metastasis to the liver or other distant sites and (v) invasion of the mesentery or adjacent organs. Tumours were located in the stomach (n = 22), small bowel (n = 6) and colon (n = 2). The size, localization, enhancement pattern, metastasis to the liver or other distant sites and the cystic-necrotic component of the tumours were all associated with a high mitotic index in statistical analyses (p<0.05). Uncommon radiological findings seen on CT were saccular aneurysmal dilatation, malignant lymphadenopathy and satellite nodules. In conclusion, CT features of GISTs were helpful in identifying predictors of malignant behaviour.

Symptomatic interrupted inferior vena cava: report of a case presenting with haematochezia.

Interrupted inferior vena cava (IVC) is a rare developmental defect. IVC interruption is usually accompanied with azygos and hemiazygos continuation, and is asymptomatic. Here, we report the imaging findings of a patient with an interrupted IVC with diffuse collaterals between the infrarenal IVC and large renal veins, left gonadal, and perirectal haemorrhoidal-portal collateral veins with associated haematochezia. Depending on the haemodynamic changes, interrupted IVC may cause possible different clinical findings as presented here.

Radiological findings of primary retroperitoneal Ewing sarcoma.

Ewing sarcomas are most commonly located in bone, while extraskeletal involvement of the retroperitoneum is extremely rare. We describe the radiologic and pathological findings in an adult patient with retroperitoneal extraskeletal Ewing sarcoma.

Double retroaortic left renal veins as a possible cause of pelvic congestion syndrome: imaging findings in two patients.

Pelvic congestion syndrome is characterized by chronic pelvic pain and varicose veins around the uterus and ovaries. We report two cases of double retroaortic left renal vein, associated with left-sided pelvic congestion syndrome, diagnosed by CT and confirmed by clinical findings and colour Doppler ultrasound. Double retroaortic left renal veins may be a contributing factor for the development of left pelvic congestion syndrome. This is the first report of double retroaortic left renal vein and associated pelvic congestion syndrome.

Primary hepatic carcinoid tumor: dynamic CT findings.

Most carcinoid tumors involve the gastrointestinal tract or respiratory system. Primary hepatic carcinoid tumor is a rare entity. A 46-year-old woman presented with abdominal pain, vomiting, and diarrhea. She was diagnosed with primary hepatic carcinoid tumor based on radiologic and laboratory findings, namely a mass in the fifth segment of the liver and markedly elevated levels of 5-hydroxyindole acetic acid in the urine. Histologic and immunohistochemical findings of the resected liver segment showed a malignant carcinoid tumor of the liver. This case is of interest because of the rarity of this neoplasm. This report describes the case and reviews the clinical features, radiologic findings, and treatment in previously reported cases.