• Genetic Analysis of Tumors Could Improve With Proper Controls

Genetic Analysis of Tumors Could Improve With Proper Controls

Up to two thirds of mutations identified in tumors also exist in matched, non-tumor tissues, researchers have found. It is therefore important for oncologists to identify the mutations that actually promote the progression of a patient’s tumor before selecting therapy. The finding, published in Science Translational Medicine on 15 April, comes

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Genetic Analysis of Icelandic Population Provides Disease Insights

Scientists in Iceland have performed an unprecedentated genetic analysis of an entire nation, associating previously undiscovered mutations with disorders such as liver disease and gallstones. In 4 articles published last week in Nature Genetics, researchers at DeCODE, an Icelandic genetics firm owned by Amgen, described sequencing the genomes of 2636

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New Programs Track Off-Label Use of Targeted Cancer Drugs

Two programs are underway to track off-label use of targeted cancer drugs and patient outcomes, as well as facilitate patient access to these agents. According to Nature News, more than 60% of US prescriptions for cancer drugs are for off-label use—often because patients have a tumor with a feature or

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  • Liver Metastases, or Syphilis?

Liver Metastases, or Syphilis?

Researchers report initially mistaking late-stage syphilis for liver metastases in the November issue of Clinical Gastroenterology and Hepatology. Irphan Gaslightwala et al describe a 59-year-old man with a history of chronic lymphocytic leukemia; 6 months of persistent fevers, chills, and night sweats; and loss of 50 pounds. A positron emission tomography–computed tomography

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How Can We Tell if Patients are Still at Risk for HCC after HCV Therapy?

For patients with chronic Hepatitis C virus infection, high levels of α-fetoprotein after therapy can identify those at risk for hepatocellular carcinoma (HCC), researchers report in the July issue of Clinical Gastroenterology and Hepatology. In persons with chronic HCV infection, lack of sustained virologic response (SVR) 24 weeks after the end

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  • What is the Cause of this Mechanic’s Abdominal Pain?

What is the Cause of this Mechanic’s Abdominal Pain?

A 56-year-old male auto mechanic experienced fever, chills, drenching night sweats, malaise, nausea, and abdominal pain and distention for 6 weeks, associated with 15 kg of lost weight. Twenty years ago he was diagnosed with ileocolonic Crohn’s disease, but he had been asymptomatic on mercaptopurine therapy for the past 10 years. He stopped smoking

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  • What are Choledochoceles?

What are Choledochoceles?

Choledochoceles are cystic dilatations of the intraduodenal portion of the common bile duct. They are often classified as Type III biliary cysts, but have distinct demographic and anatomic features, and a lower risk of malignancy than other types of choledochal cysts. In the February issue of Clinical Gastroenterology and Hepatology,

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A Robot to Remove Gastric Neoplasias

Researchers describe a robotic, flexible endoscopy system that can be safely used to remove early-stage stomach tumors in the October issue of Clinical Gastroenterology and Hepatology. Endoscopic submucosal dissection (ESD) is an effective technique to remove early-stage gastrointestinal tumors. However, it is difficult to master because it requires submucosal dissection

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What is the Best Way to Assess Bile Duct Strictures?

Researchers describe new methods to collect and process bile duct biopsies for evaluation of strictures, in the September issue of Clinical Gastroenterology and Hepatology. These approaches should provide a greater quantity of material for analysis and increase the accuracy of diagnosis. A biliary stricture is an abnormal narrowing of the

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Transplanting Engineered Mucosal Tissue into the Esophagus

Researchers have engineered tissues from oral epithelial cells that can be transplanted into the esophagus and promote healing after tumors are removed. According to the September issue of Gastroenterology, sutureless, endoscopic transplantation of sheets of autologous oral mucosal epithelial cells safely and effectively promotes re-epithelialization of the esophagus after surgery.

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