Abstract:
BACKGROUND:Renal cell carcinomas are the most common primary tumors leading to pancreatic metastases. The differentiation of metastases from primary pancreatic tumors is important for the prognosis. Echo-enhanced power-Doppler sonography may be used for the differential diagnosis of tumors. In this study, the contrast behavior of metastases of renal cell carcinomas was evaluated in comparison to primary pancreatic tumors. PATIENTS AND METHODS:Each 5 patients with pancreatic metastases of a renal cell carcinoma, a ductal carcinoma, a neuroendocrine tumor and a pancreatitis-associated mass were investigated by B-mode sonography, fundamental and echo-enhanced power-Doppler sonography. RESULTS:Similar to neuroendocrine tumors, metastases of renal cell carcinomas were found to be hypervascularized. In contrast, ductal carcinomas are hypovascularized compared to the surrounding tissue. Tumors associated with pancreatitis show different vascularization pattern depending on inflammation and necrosis. CONCLUSIONS:Metastases of renal cell carcinomas and ductal carcinomas show different vascularization pattern at echo-enhanced power-Doppler sonography. Renal cell metastases and neuroendocrine tumors have similar contrast behaviors, therefore, clinical symptoms should be referred for their differentiation. However, histology is the standard of reference for the differential diagnosis of pancreatic tumors.
journal_name
Z Gastroenteroljournal_title
Zeitschrift fur Gastroenterologieauthors
Rickes S,Flath B,Unkrodt K,Ocran K,Neye H,Lochs H,Wermke Wdoi
10.1055/s-2001-16690subject
Has Abstractpub_date
2001-08-01 00:00:00pages
571-8issue
8eissn
0044-2771issn
1439-7803journal_volume
39pub_type
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journal_title:Zeitschrift fur Gastroenterologie
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