Retroperitoneal Malignant Fibrous Histiocytoma Can Mimic a Hydatid Cyst

Malignant fibrous histiocytoma is the second most common soft-tissue sarcoma in adults. After the extremities, the retroperitoneal space is the second most common site of this tumor. A 50-year-old man presented with a right retroperitoneal, thick-walled, cystic multilocular mass measuring 10 × 10 cm that was thought to be a type CE 5 hydatid cyst preoperatively. However, the postoperative histopathology did not agree with the radiological findings and instead showed a malignant fibrous histiocytoma. The computed tomography and ultrasound/Doppler ultrasound findings of this retroperitoneal mass mimicked a type CE 5 hydatid cyst. We present this case because the surgical management of these two lesions differs and misdiagnosis can be problematic

Retroperitoneal abscess and duodenal (enterocutaneous) fistula due to brucella

Duodenal fistula is rarely seen. It occurs after gastric, aort, bowel operation, or trauma and foreign body perforastion. In this case report we present abdominal tomography findings of duodenal (enterocutaneous) fistula due to brucella.Duodenal fistula is rarely seen. It occurs after gastric, aort, bowel operation, or trauma and foreign body perforastion. In this case report we present abdominal tomography findings of duodenal (enterocutaneous) fistula due to brucella

Ruptured Ovarian Dermoid Cyst Mimicking Peritoneal Carcinomatosis: CT and MRI

Spontaneous rupture of ovarian dermoid cyst and chronic abdominal spillage of its content is a very uncommon condition, which causes granulomatous peritonitis and can be confused with peritoneal carcinomatosis. Here is presented such a case of ruptured dermoid cyst causing chronic granulomatous peritonitis with radiologic findings mimicking peritoneal carcinomatosis

Radiologic findings mimicking acute abdomen in a patient with colorectal cancer: are these side effects of FOLFIRI therapy?

Bowel perforation is an emergency problem, it presents as an acute abdomen. Computurize tomography (CT) is important imaging modality used to evaluate patients with acute abdomen. CT shows anatomical detail and intestinal wall, evaluating secondary signs of bowel disease within the surrounding mesentery and detecting even small amounts of extraluminal air or oral contrast leakage into the peritoneal cavity. The aim of this article is to illustrate acute abdominal CT findings due to FOLFIRI therapy of a patient with colorectal cancer. Interestingly, this patient was an emergency case based on radiologic findings, but he felt good, had no emergency problem clinically

The Role of Ultrasound and Laboratory Findings for Diagnosis of Appendicitis in Pediatric Patients

Purpose: Acute appendicitis is one of the most common reasons of abdominal surgery in children. The aim of this study was to compare findings of abdomen ultrasonography and laboratory results on the diagnosis of appendicitis in pediatric patients. Materials-Methods: Preopperative ultrasonography and laboratory findings of 114 children (53 girls and 61 boys; mean age: 132 months) who clinically suspected acute appendicitis and undergone appendectomy between January 2007- January 2009 were evaluated retrospectively. If appendix was visualize on US, outer diameter was measured. Six mm or more of outer appendiceal diameter was accepted as a sign of acute appendisicitis. Also periappendicular fluid, lymph node, C-reactive protein (CRP) values, white blood cells and neutrophil percentage were compared with pathologic results. The pathologic diagnosis was the gold standart. Results: Six mm or more of appendiceal diamater was accepted as a sign of acute appendicitis, the corresponding sensitivity, specificity, positive and negative predictive values and accuracy were found 76.40%, 80%, 93.15%, 87.35% and 71.19 % respectively. If 7mm or more of appendiceal diamater accepted as a sign of acute appendicitis, the sensitivity, specificity, positive and negative predictive values and accuracy were found 66.29%, 88% , 95.12%, 42.31% and 71.05% respectively. In patients with acute appendicitis, white blood cells, neutrophil percentage and CRP values were found higher than other patients. There was a significant difference in the white blood cells, neutrophil percentage and CRP values between normal patients and patients with acute appendicitis. There was no significant difference in the presence of periappendicular fluid and lymph node on ultrasonography examination between normal patients and patients with acute appendicitis. Conclusion: Ultrasonography is a cheap, practical and noninvasive method, and does not require ionizing radiation and oral or intravenous contrast material. Therefore, ultrasonography should be used the primary imaging modality for pediatric patients. If ultrasonography is non-diagnostic for appendicitis, computed tomography can be prefered as a second imaging modality [Cukurova Med J 2012; 37(2.000): 84-89

Perforation without manifestations of acute abdomen after ERCP

Perforations are rare after endoscopic retrograde cholangiography (ERCP) but they are serious complications. Perforations may occur due to patient-related factors or procedural technique. The mortality rate is higher than 37.5%. We are presenting a patient with perforation detected on a computed tomography (CT) scan after ERCP for obstructive jaundice that was treated conservatively. Perforation after ERCP can be operated or treated conservatively according to the patient's condition

Late pancreatic metastasis of renal cell carcinoma with absence of FDG-uptake in PET-CT

The primary tumors, which raise isolated pancreas metastases are frequently of renal origin, where colorectal cancer, melanoma, breast and lung cancers and sarcoma are the following causes of metastatic pancreas cancer. In this article, we present a case of pancreas-metastatic renal cell carcinoma with its radiological features, which did not exert anF-18 FDG-uptake in the whole-body positron emission tomography (PET)

Diffusion-Weighted Magnetic Resonance Imaging in Renal Lesion Characterization

Objective: To present the diffusion weighted magnetic resonance imaging findings of the patients with renal lesions and to explore ADC values of cystic and solid lesions. Materials and Methods: 20 patients with renal lesion (16 men, 4 women) were included in the study. All patients evaluated with diffusion weighted magnetic resonance imaging. 9 patients had renal cell carcinoma, one patient had oncocytoma and 10 patients had cyst. Results: Between all ADC values of lesions and ADC values of normal kidney parenchyma were significantly different. In addition, ADC values of malignant lesions were significantly lower than ADC values of normal kidney parenchyma and cyst. The lowest ADC value of malignant lesions was 0.75x 10-3 mm2 / s. The ADC values of malignant lesions varied between 0.75x 10-3 - 2.25x 10-3 mm2 / s values for ADC (b0, 111, 222, 333 s/mm2) . Whereas the lowest ADC value of cysts were calculated 2.81x 10-3 mm2 / s. All cysts had hyperintense signal on T2 weighted and diffusion-weighted images and high ADC values on ADC maps. Malignant lesions had low ADC values on ADC maps. Conclusion: The technique has the advantage that it is non-invasive without need for gadolinium administration, takes about 2 minute. This method provides qualitative and quantitative infomation on tissue characterization. DA-MRI and ADC values are important for characterization of renal lesions. Especially, utility of diffusion-weighted magnetic resonance imaging in the patients with risk for nephrogenic systemic fibrosis (NSF) could be beneficial. [Cukurova Med J 2012; 37(1): 27-36