scholarly journals Diagnosis of Cancer Spread Using Percutaneous Transhepatic Biliary Cholangioscopy-guided Ultrasonography for Malignant Bile Duct Stenosis

2001 ◽  
Vol 7 (3-4) ◽  
pp. 159-164 ◽  
Author(s):  
Hirokazu Inoue
Keyword(s):  
Bile Duct ◽  
Extrahepatic Bile Duct ◽  
Biliary Duct ◽  
Wall Thickening ◽  
Papilla Of Vater ◽  
Extrahepatic Bile Duct Cancer ◽  
Bile Duct Stenosis ◽  
Cancer Spread ◽  
Duct Stenosis ◽  
Maximum Minimum

The characteristics of sites of intramural cancer spread were examined by comparing the intraductal ultrasonography (IDUS) and wall thickening findings at sites of intramural cancer spread and non-spread, in patients with malignant bile duct stenosis who had undergone percutaneous transhepatic biliary drainage (PTBD).The subjects were ten patients with extrahepatic bile duct cancer, two with pancreatic cancer, one with cancer of the gallbladder, and one with cancer of the papilla of Vater who underwent preoperative IDUS. From these patients, 50 IDUS slices were examined with a congruent relationship with the histologic section of resected tissue. The maximum thickening, minimum thickening, maximum/minimum thickening ratio, and form factor of the medial and lateral margins of the medial hypoechoic layer were determined using diagnostic imaging, and the results were compared at sites of cancer spread and non-spread.Twelve slices were obtained from the site of stenosis, 14 from sites of cancer spread, and 24 from non-spread sites. The maximum thickening, minimum thickening, and maximum/minimum thickening ratio differed significantly between the sites of spread and the non-spread.The absolute values for wall thickening are useful for diagnosing the presence of intramural spread in patients with malignant biliary duct stenosis.

scholarly journals Difficulty Achieving a Preoperative Diagnosis of IgG4-Related Sclerosing Cholangitis

2018 ◽  
Vol 12 (2) ◽  
pp. 425-431
Author(s):  
Kazuhiro Suzumura ◽  
Etsuro Hatano ◽  
Masaharu Tada ◽  
Hideaki Sueoka ◽  
Hiroshi Nishida ◽  
...  
Keyword(s):  
Bile Duct ◽  
Preoperative Diagnosis ◽  
Sclerosing Cholangitis ◽  
Wall Thickening ◽  
Distal Bile Duct ◽  
Obliterative Phlebitis ◽  
Bile Duct Stenosis ◽  
Storiform Fibrosis ◽  
Lymphoplasmacytic Infiltration ◽  
Duct Stenosis

A 75-year-old male was admitted to our hospital because of bile duct stenosis. He had no medical history of autoimmune disease. The level of tumor markers, serum IgG, and IgG4 were within normal ranges. Computed tomography showed perihilar and distal bile duct stenosis and wall thickening without swelling or abnormal enhancement of the pancreas. Endoscopic retrograde cholangiopancreatography showed perihilar and distal bile duct stenosis. A biopsy and cytology from the distal bile duct stenosis suggested adenocarcinoma, and cytology from the perihilar bile duct also suggested adenocarcinoma. A preoperative diagnosis of perihilar and distal bile duct cancer was made, and the patient underwent left hepatectomy and pancreaticoduodenectomy. Resected specimens showed wall thickening in the perihilar and distal bile duct; however, tumors were unclear. A histopathological examination revealed lymphoplasmacytic infiltration, storiform fibrosis, and obliterative phlebitis in the perihilar and distal bile ducts. Immunohistochemistry revealed diffuse infiltration of IgG4-positive plasma cells in the perihilar and distal bile ducts. Lymphoplasmacytic infiltration, inflammatory change, storiform fibrosis, and obliterative phlebitis were shown in the pancreas. A final diagnosis of IgG4-related sclerosing cholangitis (IgG4-SC) with autoimmune pancreatitis was made. We herein report a case in which a preoperative diagnosis of IgG4-SC was difficult due to normal serum IgG4 levels and no obvious pancreatic lesion.

scholarly journals Flat Papilla of Vater and Bleeding during Endoscopic Sphincterotomy: Two New Risk Factors for Post-Endoscopic Pancreatitis

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Jamry A ◽  
Keyword(s):  
Risk Factors ◽  
Bile Duct ◽  
Endoscopic Sphincterotomy ◽  
Multivariate Regression ◽  
Pathological Examination ◽  
Papilla Of Vater ◽  
Bleeding Control ◽  
Endoscopic Retrograde ◽  
Bile Duct Stenosis ◽  
Duct Stenosis

Objective: To analyze the risk factors for post-endoscopic pancreatitis (PEP). Background: PEP occurs in 4%-42% of patients, depending on their risk factors. Over 56 risk factors were analyzed, but only 4were found to be repeated in most studies. Study: A single-center retrospective study analyzing 402 consecutive patients with naïve papillae who underwent Endoscopic Retrograde Cholangiopancreatography (ERCP) was conducted. The significance of 14 potentially new risk factors was evaluated, and it was found that they were associated with the level of bile duct stenosis, papilla anatomy, bleeding during sphincterotomy, endoscopic bleeding control, and pathological examination. Furthermore, 13 of the most frequently published risk factors were re-analyzed. Results: Five risk factors (containing two new ones) were significant with the following univariate and multivariate regression values: flat papilla (odds ratio [OR] 5.1, p=0.0049; OR 4.59, p=0.0244) and bleeding during endoscopic sphincterotomy (OR 3.58, p=0.148; OR 4.07, p=0.0257), and significance of the three already known risk factors was confirmed: age <40 years (OR 6.89, p=0.0139; OR 4.96, p=0.0139), common bile duct (CBD) diameter < 9 mm (OR 5.35, p=0.0007; OR 3.98, p=0.0203), and difficulty in cannulation (OR 3.2, p=0.0298; OR 7.72, p=0.004). Conclusion: This study reaffirms the risk of PEP associated with age, difficulty in cannulation, and CBD diameter. It also identifies two new risk factors: flat papilla and bleeding during sphincterotomy. These results suggest the need for a change in ERCP methodology in patients with these risk factors, but this finding requires confirmation in subsequent studies.

scholarly journals IgG4-Related Sclerosing Cholangitis Mimicking Cholangiocarcinoma

2021 ◽  
pp. 39-46
Author(s):  
Pham Minh Thong ◽  
Vu Dang Luu ◽  
Thieu-Thi Tra My ◽  
Nguyen Xuan Hien ◽  
Tran Anh Tuan ◽  
...  
Keyword(s):  
Bile Duct ◽  
Sclerosing Cholangitis ◽  
Wall Thickening ◽  
Systemic Involvement ◽  
Bile Duct Stenosis ◽  
Diffusion Weighted Images ◽  
Igg4 Related Disease ◽  
Imaging Characteristics ◽  
Serum Igg4 ◽  
Duct Stenosis

IgG4-related sclerosing cholangitis (IgG4-SC) is a relatively newly identified disease that is frequently associated with autoimmune pancreatitis. The differential diagnosis between cholangiocarcinoma, primary sclerosing cholangitis, and IgG4-SC can be challenging due to significant overlap among the clinical and imaging characteristics. We report the case of a 71-year-old woman who was diagnosed with IgG4-related disease based on increased serum IgG4 levels, imaging, and clinical presentation, which showed systemic involvement, including sclerosing cholangitis and kidneys. The patient presented with chronic jaundice. Magnetic resonance imaging revealed bile duct strictures and the dilatation of upstream bile ducts, smooth wall thickening with uniform enhancement in the delayed phase, and no vascular infiltration. Multiple low-density, wedge-shaped areas were identified in both kidneys, which were hypointense on T2-weighted images and hyperintense on diffusion-weighted images. The serum IgG4 levels of this patient were elevated to nearly 10-fold the normal upper limit. A diagnosis of IgG4-SC associated with IgG4-related kidney was made. Based on this case, pre-surgery IgG4 serum treatment in patients with non-malignant bile duct stenosis was recommended to exclude IgG4-SC.

scholarly journals GWAS of serum ALT and AST reveals an association of SLC30A10 Thr95Ile with hypermanganesemia symptoms

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Lucas D. Ward ◽  
Ho-Chou Tu ◽  
Chelsea B. Quenneville ◽  
Shira Tsour ◽  
Alexander O. Flynn-Carroll ◽  
...  
Keyword(s):  
Bile Duct ◽  
Extrahepatic Bile Duct ◽  
Association Studies ◽  
Missense Variant ◽  
Deficiency Anemia ◽  
Genome Wide Association Studies ◽  
Loss Of Function ◽  
Extrahepatic Bile Duct Cancer ◽  
Hepatocellular Damage ◽  
Increased Risk

AbstractUnderstanding mechanisms of hepatocellular damage may lead to new treatments for liver disease, and genome-wide association studies (GWAS) of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) serum activities have proven useful for investigating liver biology. Here we report 100 loci associating with both enzymes, using GWAS across 411,048 subjects in the UK Biobank. The rare missense variant SLC30A10 Thr95Ile (rs188273166) associates with the largest elevation of both enzymes, and this association replicates in the DiscovEHR study. SLC30A10 excretes manganese from the liver to the bile duct, and rare homozygous loss of function causes the syndrome hypermanganesemia with dystonia-1 (HMNDYT1) which involves cirrhosis. Consistent with hematological symptoms of hypermanganesemia, SLC30A10 Thr95Ile carriers have increased hematocrit and risk of iron deficiency anemia. Carriers also have increased risk of extrahepatic bile duct cancer. These results suggest that genetic variation in SLC30A10 adversely affects more individuals than patients with diagnosed HMNDYT1.

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