Articles tagged with: Abstracts –
March 2017—An immunohistochemical algorithm for ovarian carcinoma typing: Five major histotypes of ovarian carcinoma exist. Diagnostic typing criteria have evolved over time, and past cohorts may be misclassified by current standards. The authors undertook an endeavor to reclassify the recently assembled Canadian Ovarian Experimental Unified Resource and Alberta Ovarian Tumor Type cohorts using immunohistochemical (IHC) biomarkers and to develop an IHC algorithm for ovarian carcinoma histotyping.
March 2017—Effects of ovarian cancer cells manipulating mesothelial cells that line the peritoneal cavity: spread within the peritoneal cavity, resulting in cell implantation and metastasis at many secondary sites. The peritoneal cavity and associated organs are lined by a single layer of mesothelial cells that it has been suggested not only provides a physical barrier to prevent implantation and invasion but also plays a more complex interactive role in regulating cancer spread.
February 2017—Concordance between liquid biopsy and patient-matched tumor molecular testing: The use of sequence analyses of extended panels of genes to identify therapeutic targets in cancer is becoming commonplace. These assays typically rely on the availability of tissue biopsies as a source of genomic material, which can become a limitation in situations where insufficient tissue is available or an invasive procedure to collect tissue is impractical. A potential solution to this dilemma is the use of a blood-based, or liquid biopsy, approach, in which a peripheral blood sample is used as a source of tumor-derived genomic material, either in the form of cell-free DNA (cfDNA) or via circulating tumor cells (ctcDNA).
February 2017—Findings in hysterectomy specimens of women with Lynch syndrome; Percentages and architectural types of Gleason pattern 4 cancer in radical prostatectomy; PTEN loss and chromosome 8 alterations in Gleason grade 3 prostate cancer cores; Lymph node count from neck dissection predicts mortality in head and neck cancer; Assessing the adequacy of lymph node yield for papillary thyroid cancer; Addressing perceived versus actual agreement in breast pathology interpretation; Cost-effectiveness of Oncotype DX DCIS score for guiding treatment of DCIS
February 2017—Screening for Babesia microti in the U.S. blood supply; Perspectives on whether WES is ethically disruptive in pediatrics; Perspectives on whether WES is ethically disruptive in pediatrics
January 2017—Drawbacks of reflex ER and PR analysis of DCIS in breast needle core biopsies; Analysis of eosinophils and mast cells of gastrointestinal tract in healthy children; Classifying gastric cancer into molecular subgroups; Clinicopathologic significance of mismatch repair defects in endometrial cancer; Use of immunostains to distinguish hepatic adenoma from hepatocellular carcinoma; Prognostic effect of PD-L1 expression patterns in cervical cancers; Variation in pattern-based classification of invasive endocervical adenocarcinoma
January 2017—Impact of laboratory cost display on resident attitudes and knowledge of costs: The Institute of Medicine report on health care quality recommends providing better care at lower costs. However, the United States has consistently seen rising health care costs instead of cost reductions. An approach to reducing unnecessary health care spending is to make physicians more aware of the cost of diagnostic tests.
December 2016—ANXA1 as a predictive biomarker for resistance to trastuzumab in breast cancer: Treatment with the HER2-targeting antibody trastuzumab (Herceptin) is a key component of therapy for women with HER2-positive breast cancer. However, a subset of women with advanced disease shows initial or acquired resistance to therapy, although the mechanisms that control this resistance are largely unknown. Some studies have suggested that activation of the PI3K/mTOR signaling pathway may be responsible for trastuzumab resistance.
December 2016—Reproducibility of NEPTUNE descriptor-based scoring system with various types of images: The multicenter Nephrotic Syndrome Study Network, or NEPTUNE, digital pathology scoring system uses a novel and comprehensive methodology to document pathologic features from whole-slide images, immunofluorescence, and ultrastructural digital images.
December 2016—Process optimization to improve immunosuppressant drug testing turnaround time: The routine use of immunosuppressant medications is critical for patients receiving solid organ transplants. Monitoring immunosuppressant (ISP) drug concentrations helps guide safe and effective dosing. ISP drug monitoring is performed using mass spectrometry or immunoassay methods.