Abstract
A patient with slight dilatation of the main pancreatic duct was followed-up with ultrasonography every 6 months as a high-risk case of pancreatic cancer. Twelve years later, a faint hypoechoic area 13 mm in diameter was first detected on the body of the pancreas. Contrast-enhanced ultrasonography revealed a well-demarcated hypoenhanced area 8 mm in diameter and a hyperenhanced area with an unclear margin. The former was suspected to be a small pancreatic cancer lesion, and the latter to be focal pancreatitis accompanying cancer. However, contrast-enhanced dynamic CT did not suggest any tumor, diagnosis of adenocarcinoma was confirmed with pancreatic juice cytology through endoscopic retrograde pancreatography. Surgical resection was performed, and the lesion was pathologically diagnosed as invasive ductal carcinoma as follows: pTS1 (1.0 cm), infiltrative type (pT1), stage IA. When comparing the images from contrast-enhanced ultrasonography with the pathological findings, the hypoenhanced area corresponded to ductal adenocarcinoma, and the hyperenhanced area to focal pancreatitis. Contrast-enhanced ultrasonography was able to reveal detailed information on the focal lesion in the pancreas, and it was effective for the early dia...Continue Reading
References
Dec 1, 1996·Japanese Journal of Clinical Oncology·S TanakaH Ohigashi
Feb 7, 2001·Radiology·S R WilsonX Lai
Sep 22, 2001·AJR. American Journal of Roentgenology·S TanakaF Yoshioka
Apr 18, 2002·AJR. American Journal of Roentgenology·Osamu OshikawaTakashi Mitani
Sep 10, 2002·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·Yutaka OzawaYukio Nakatani
Nov 27, 2002·Japanese Journal of Clinical Oncology·Sachiko TanakaTsugio Kitamra
Mar 13, 2003·Acta Radiologica·K TakedaT Hayakawa
Aug 7, 2003·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·Michitaka NagaseMasahiro Yoshino
Apr 16, 2004·Pancreas·Sachiko TanakaHiroaki Ohigashi
Apr 16, 2004·Pancreas·Tadashi OhshimaHiromitsu Saisho
May 13, 2004·Gut·M KitanoT Kawasaki
Jul 12, 2005·Journal of Gastroenterology·Kazushi NumataKatsuaki Tanaka
Oct 26, 2005·AJR. American Journal of Roentgenology·Kenji TakeshimaSadanobu Ogawa
Sep 26, 2008·Pancreas·Niccolo' FaccioliRoberto Pozzi Mucelli
Feb 24, 2010·Radiology·Sachiko TanakaJunko Fukuda
Mar 17, 2011·Radiology·Soon Ho YoonByung Ihn Choi
Jun 1, 2005·Journal of Medical Ultrasonics·Sachiko TanakaTetsushi Ishida
Mar 1, 2006·Journal of Medical Ultrasonics·Naohiro IchinoYoshikazu Mizoguchi
Jun 21, 2017·European Journal of Radiology·Miho NakaoKazuyoshi Ohkawa
Jul 29, 2018·Hepatobiliary & Pancreatic Diseases International : HBPD INT·Wen-Quan WangXian-Jun Yu