نتایج جستجو برای: endosonography
تعداد نتایج: 372 فیلتر نتایج به سال:
Pancreatic cysts are challenging to the gastroenterologist. Detection rate is increasing and neither criteria for a definitive diagnosis, nor a validated surveillance strategy is available. Pancreatic endosonography with or without sampling is necessary in most of the cases. However this technique requires expertise and is not widely available. While some cysts have a malignant potential or alr...
Diagnostic procedures for secreting endocrine pancreatic tumors comprise biochemical tests, CT scans, conventional abdominal sonography, angiography and occasionally MR imaging and isotope scans. Due to their small size, insulinomas and gastrinomas, the most common of these tumors, elude these diagnostic procedures. Preoperative sonography and CT scans were negative in over 60%, angiograms in 3...
The primary staging of an oesophageal cancer can be difficult, if accompanied by sarcoidosis. In these patients endosonography, CT and PET may not be sufficient for staging purposes concerning lymph node and distant metastases. In these special cases operative biopsies of enlarged lymph nodes and unclear pulmonary nodules have to be obtained. In connection with the radiographic examinations the...
Pancreatic tumors being either benign or malignant can be solid or cystic. Although diverse in presentation, their imaging features share commonalities and it is often difficult to distinguish these tumors. Endoscopic ultrasonography (EUS) is the most sensitive of the imaging procedures currently available for characterizing pancreatic tumors, and is especially good in identifying the smaller s...
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