Malignant peritoneal mesothelioma: quantitative analysis of asbestos burden.

Malignant mesotheliomas develop commonly in the pleural cavity and rarely arise in the peritoneal cavity. It is well established that asbestos exposure is related to malignant pleural mesothelioma, but the asbestos burden in the abdominal cavity in patients with malignant peritoneal mesothelioma has not been well studied. The purpose of the present study was therefore to report on an autopsy case of malignant peritoneal mesothelioma with quantitative analysis of the asbestos burden in tissues from the pleura and organs in the abdominal cavity.

Spontaneous rupture of pancreatic metastasis from renal cell carcinoma.

We report the case of a 53-year-old female who was admitted for sudden abdominal pain. Her right kidney was resected in 1993 due to renal cell carcinoma. Abdominal computed tomography performed in September 2002, while she was placed under observation, revealed a tumor 40 mm in size that extended from the head to the body of the pancreas.

Distinguishing benign from malignant intraductal papillary mucinous tumors of the pancreas by imaging techniques.

Objectives: It is often difficult to differentiate benign from malignant intraductal papillary mucinous tumors (IPMTs). This study aimed to differentiate them using various imaging techniques.

Methods: Receiver operating characteristic curves were used to establish optimal cutoff values to differentiate benign from malignant tumors in 121 patients with histologically confirmed IPMTs.

Evaluation of blood flow in pancreatic ductal carcinoma using contrast-enhanced, wide-band Doppler ultrasonography: correlation with tumor characteristics and vascular endothelial growth factor.

Background And Aims: Tumor vascularization has been attracting attention. However, there have been only a few reports on tumor vascularization in pancreatic ductal carcinoma, especially on vascularization depicted by imaging modalities. We investigated the relationship among wide-band Doppler signals, clinicopathological factors, and vascular endothelial growth factor (VEGF) expression.