Pancreatic tumors: evaluation with endoscopic US, CT, and MR imaging.

Abstract

Endoscopic US is more accurate than dynamic CT and MR imaging in the diagnosis of pancreatic tumor, particularly for tumors less than 3 cm in diameter.

Lymph node size and metastatic infiltration in adenocarcinoma of the pancreatic head

“…Our study showed that in 86% of pN1 patients no lymph node was larger than 10 mm and the majority of nodes were smaller than 5 mm , whereas in 46% of pN0 patients at least one lymph node was larger than or equal 10 mm. This reflects the reported sensitivity and specificity of CT scan in the assessment of nodal metastases in pancreatic cancer which ranges from 14% to 37% and from 60% to 92% respectively 8,9,[14][15][16] . The lack of correlation between lymph node size and metastatic infiltration has also been reported for other solid tumors.…”

“…In the pretherapeutic lymph node staging of pancreatic cancer, a correlation between lymph node size and metastatic infiltration is assumed. Most investigators have used short axis diameter of 10 mm for diagnosing nodal involvement 8,9,16,17 . Our study showed that in 86% of pN1 patients no lymph node was larger than 10 mm and the majority of nodes were smaller than 5 mm , whereas in 46% of pN0 patients at least one lymph node was larger than or equal 10 mm.…”

Imaging in Staging and Management of Pancreatic Ductal Adenocarcinoma

“…This introduces significant errors as many nodes larger than 1 cm are reactive and many metastatic nodes measure less than 1 cm. Hence, the reported sensitivity for detecting nodal involvement by CT is low [29] [35,36].…”

Preoperative Endoscopic Ultrasound (EUS) Imaging in Diagnosis of Insulinomas in a University Hospital in Damascus

“…Other procedures are invasive such as preoperative and intra-operative endoscopic ultrasound (EUS). However, all these methods have low sensitivities (Müller et al, 1994 The intra-operative EUS is more accurate and could improve the detection of pancreatic tumor (near 100%) (Chung JC, et al, 2006). Since 1990s EUS has been considered the reference method in Zaynab Alourfi *1 localizing insulinomas with using a high-frequency sonography probe, that can get very close to the pancreas ( Kann P 2016, McLean, A. M. and Fairclough P. D, 2005; Nesje LB, et al, 2002).…”