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Tag Archives: Abstracts —

Clinical pathology selected abstracts

RT-PCR detection of B. microti parasites using BMN antigens as amplification targets October 2018—Babesia microti infection, which is transmitted through the bite of an infected tick, is a growing health concern and continues to be a threat to the blood supply, with 22 states having reported cases of babesiosis in 2014. While most healthy adults with Babesia infection are asymptomatic or present with mild symptoms, including fever, fatigue, and anemia, babesiosis can be severe or fatal in neonates, the elderly, and immunosuppressed individuals.

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Anatomic pathology selected abstracts

Analysis of ZC3H7B-BCOR high-grade endometrial stromal sarcomas October 2018—High-grade endometrial stromal sarcoma likely encompasses underrecognized tumors harboring genetic abnormalities besides YWHAE–NUTM2 fusion. Triggered by three initial endometrial stromal sarcomas with ZC3H7B–BCOR fusion characterized by high-grade morphology and aggressive clinical behavior, the authors investigated the clinicopathologic features of this genetic subset by expanding the analysis to 17 such tumors. All of the tumors occurred in women who were a median age of 54 (range, 28–71) years.

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Molecular pathology selected abstracts

Cell-free DNA tumor mutational burden predicts efficacy of immune checkpoint inhibitors October 2018—Immune checkpoint inhibitors have emerged as a potent class of therapy for a variety of malignancies. The biologic rationale for these drugs is that somatic mutations, not necessarily in cancer driver genes, may accumulate in tumor cells, resulting in amino acid changes that create neoantigens (epitopes not present in normal cells during maturation of the immune system).

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Molecular pathology selected abstracts

Ability of genetic alterations to predict development of acute myeloid leukemia
September 2018—Acute myeloid leukemia affects more than 60,000 people in the United States every year and has a mortality rate of more than 90 percent. It is the most common form of acute leukemia and is caused by unchecked growth of immature precursor cells in the bone marrow. These immature cells, or blasts, are myeloid precursors that often develop into dysfunctional, cancerous white blood cells that fill the bone marrow and spread into the blood.

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Clinical Pathology Abstracts

Association of perioperative RBC transfusions with venous thromboembolism
August 2018—Hospital-associated venous thromboembolism is a major cause of morbidity and mortality, resulting in 100,000 to 200,000 deaths annually. Surgery can lead to a proinflammatory state and be a prothrombotic stimulus for venous thromboembolism (VTE). General anesthesia, as well as red blood cells transfused in the perioperative setting, is considered an independent risk factor for VTE.

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Anatomic Pathology Abstracts

Analysis of the surveillance of women diagnosed with atypical ductal hyperplasia on core needle biopsy
August 2018—A needle core biopsy diagnosis of atypical ductal hyperplasia is an indication for open biopsy. The launch of randomized clinical trials of active surveillance for low-risk ductal carcinoma in situ leads to the paradoxical situation of women with low-grade ductal carcinoma in situ being observed and those with atypical ductal hyperplasia having surgery.

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Molecular Pathology Abstracts

Prevalence of clonal hematopoiesis mutations in tumor-only clinical genomic profiling of solid tumors
August 2018—Challenges to implementing next-generation sequencing-based comprehensive molecular profiling of solid tumors include reliably separating germline variants from somatic variants. This is an important consideration, particularly when a “tumor-only” profiling approach is used.

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Clinical Pathology Abstracts

Trends in perioperative RBC transfusion from index cases in five surgical specialties
July 2018—In recent years, greater attention has been given to patient blood management. While contemporary national guidelines recommend restrictive red blood cell transfusion, it is not known whether such transfusions have decreased in surgical patients. Approximately 11 million RBC transfusions are performed annually, and two-thirds of those are for patients in the perioperative period.

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