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Archives of Pathology & Laboratory Medicine

Carey L Medin, Alan L Rothman
Once obscure, Zika virus (ZIKV) has attracted significant medical and scientific attention in the past year because of large outbreaks associated with the recent introduction of this virus into the Western hemisphere. In particular, the occurrence of severe congenital infections and cases of Guillain-Barré syndrome has placed this virus squarely in the eyes of clinical and anatomic pathologists. This review article provides a basic introduction to ZIKV, its genetics, its structural characteristics, and its biology...
October 20, 2016: Archives of Pathology & Laboratory Medicine
David A Siegel, Reda Wilson, Edward J Wilkinson, Julia W Gargano, Meg Watson, Brenda Y Hernandez, Marc T Goodman, Charles F Lynch, Elizabeth R Unger, Mona Saraiya
CONTEXT: -Knowing the subtype of vulvar cancer histology is important for estimating human papillomavirus-related cancer etiology. Surveillance of human papillomavirus-related vulvar cancers informs public health decisions related to vaccination against human papillomavirus. OBJECTIVE: -To assess the accuracy of registry classifications of vulvar cancer and determine the histologic classification of cases reported as not otherwise specified. DESIGN: -Pathology specimens were collected from Florida, Iowa, and Hawaii cancer registries...
October 20, 2016: Archives of Pathology & Laboratory Medicine
David A Schwartz
No abstract text is available yet for this article.
October 20, 2016: Archives of Pathology & Laboratory Medicine
David Altree-Tacha, Jillian Tyrrell, Thomas Haas
CONTEXT: -CDH17, which is expressed in the intestinal epithelium, is a novel oncogene involved in tumor invasion and metastasis. A panel consisting of cytokeratin (CK) 7, CD20, and CDX2 antibodies is typically used to diagnose gastrointestinal adenocarcinomas. However, studies have shown that CDH17 is a highly specific marker for gastrointestinal adenocarcinoma and may be important in clinical diagnosis. OBJECTIVE: -To evaluate the sensitivity and specificity of CDH17, CK20, and CDX2 antibodies in neoplastic tissues, with emphasis on colon, stomach, and esophageal gastrointestinal lineage...
October 20, 2016: Archives of Pathology & Laboratory Medicine
Alain C Borczuk
CONTEXT: -The use of frozen section in thoracic pathology includes assessment of peripheral lung lesions with lepidic pattern, with greater emphasis on evaluating lung-sparing resections and margin assessment. OBJECTIVE: -To review pitfalls of frozen section in thoracic pathology; in this setting, reduction of false-positive and false-negative diagnosis in lesion identification and margin assessment is critical. DATA SOURCES: -PubMed search of frozen section lung pathology yielded specific references related to the use of frozen section in the identification of lepidic lesions and the clinical recommendation for margin distance...
October 20, 2016: Archives of Pathology & Laboratory Medicine
Vijayalakshmi Padmanabhan, Heather B Steinmetz, Elizabeth J Rizzo, Amber J Erskine, Tamara L Fairbank, Francine B de Abreu, Gregory J Tsongalis, Laura J Tafe
CONTEXT: -At our medical center, cytopathologists perform rapid on-site evaluation for specimen adequacy of fine-needle aspiration and touch imprint of needle core biopsy lung cancer samples. Two years ago the molecular diagnostics laboratory at our institution changed to next-generation sequencing using the Ion Torrent PGM and the 50-gene AmpliSeq Cancer Hotspot Panel v2 for analyzing mutations in a 50-gene cancer hot spot panel. This was associated with in a dramatic fall in adequacy rate (68%)...
October 20, 2016: Archives of Pathology & Laboratory Medicine
Raul S Gonzalez, Sadiq M Amer, Nejib Ben Yahia, Felipe D'Almeida Costa, Manu Noatay, Jian-Hua Qiao, Flavia G Rosado, Yale Rosen, Bruno Tavares Sedassari, Rhonda K Yantiss, Jerad M Gardner
CONTEXT: -Facebook (Menlo Park, California) is one of many online sites that provide potential educational tools for pathologists. We have each founded Facebook groups dedicated to anatomic pathology, in which members can share cases, ask questions, and contribute to discussions. OBJECTIVES: -To report our experiences in founding and maintaining these Facebook groups and to characterize the contributed content. DESIGN: -We circulated a survey among the group founders, then compiled and analyzed the responses...
October 20, 2016: Archives of Pathology & Laboratory Medicine
Ronald E Domen, Kristen Johnson, Richard Michael Conran, Robert D Hoffman, Miriam D Post, Jacob J Steinberg, Mark D Brissette, Dita A Gratzinger, Cindy B McCloskey, Patricia M Raciti, Cory Anthony Roberts, Amyn M Rojiani, Suzanne Zein-Eldin Powell
CONTEXT: -Professionalism issues in residency training can be difficult to assess and manage. Generational or role-based differences may also exist between faculty and residents as to what constitutes unprofessional behavior and how to manage it. OBJECTIVE: -To examine and compare how faculty and residents would approach the same 5 case scenarios detailing various aspects of unprofessional behavior. DESIGN: -Five case scenarios highlighting various unprofessional behaviors were presented in a workshop at an annual meeting of pathology department chairs, residency program directors, and undergraduate pathology medical educators (ie, pathologists involved in medical student pathology education)...
October 20, 2016: Archives of Pathology & Laboratory Medicine
Marie Louise Landry, Kirsten St George
CONTEXT: -The rapid and accurate diagnosis of Zika virus infection is an international priority. OBJECTIVE: -To review current recommendations, methods, limitations, and priorities for Zika virus testing. DATA SOURCES: -Sources include published literature, public health recommendations, laboratory procedures, and testing experience. CONCLUSIONS: -Until recently, the laboratory diagnosis of Zika infection was confined to public health or research laboratories that prepared their own reagents, and test capacity has been limited...
October 20, 2016: Archives of Pathology & Laboratory Medicine
Daniel D Rhoads, Jonathan R Genzen, Christine P Bashleben, James D Faix, M Qasim Ansari
CONTEXT: -Syphilis serology screening in laboratory practice is evolving. Traditionally, the syphilis screening algorithm begins with a nontreponemal immunoassay, which is manually performed by a laboratory technologist. In contrast, the reverse algorithm begins with a treponemal immunoassay, which can be automated. The Centers for Disease Control and Prevention has recognized both approaches, but little is known about the current state of laboratory practice, which could impact test utilization and interpretation...
October 20, 2016: Archives of Pathology & Laboratory Medicine
Carolin A Boecking, Eleanor A Drey, Jennifer L Kerns, Walter E Finkbeiner
CONTEXT: -Despite increased use of dilation and evacuation in the setting of fetuses with developmental anomalies, the pathology examination of fragmented specimens obtained by this technique has been understudied. OBJECTIVES: -To correlate pathologic findings in second-trimester fetal dilation and evacuation specimens with prenatal diagnoses established through ultrasound and/or chromosome studies to determine the value of pathology examination for supplementing or correcting clinical diagnoses...
October 20, 2016: Archives of Pathology & Laboratory Medicine
Peter Štrafela, Alenka Vizjak, Jerica Mraz, Jernej Mlakar, Jože Pižem, Nataša Tul, Tatjana Avšič Županc, Mara Popović
CONTEXT: -The 2015 outbreak of Zika virus in Brazil resulted in a 20-times increased prevalence of congenital microcephaly in stillborns and neonates and was instrumental in raising the suspicion of a causal association between Zika virus and microcephaly. OBJECTIVE: -To provide a comprehensive description of the neuropathologic features of congenital Zika virus infection. DESIGN: -Autopsy evaluation of the brain from a fetus of 32 weeks and 6 days of gestation, with a prenatal diagnosis of microcephaly associated with polymerase chain reaction-confirmed, fetal, Zika virus infection...
October 11, 2016: Archives of Pathology & Laboratory Medicine
Jerad M Gardner
No abstract text is available yet for this article.
October 5, 2016: Archives of Pathology & Laboratory Medicine
Jana M Ritter, Roosecelis B Martines, Sherif R Zaki
Context .- As the number of Zika virus (ZIKV) infections continues to grow, so, too, does the spectrum of recognized clinical disease, in both adult and congenital infections. Defining the tissue pathology associated with the various disease manifestations provides insight into pathogenesis and diagnosis, and potentially future prevention and treatment, of ZIKV infections. Objective .- To summarize the syndromes and pathology associated with ZIKV infection, the implications of pathologic findings in pathogenesis of ZIKV disease, and the use of pathology specimens for diagnosis of ZIKV infection...
October 5, 2016: Archives of Pathology & Laboratory Medicine
Mehran Haidari, Marwan Yared, Juan P Olano, C Bruce Alexander, Suzanne Z Powell
Context .- Previous studies suggest that training in pathology residency programs does not adequately prepare pathology residents to become competent in clinical chemistry. Objectives .- To define the beliefs of pathology residents in the United States regarding their preparation for practicing clinical chemistry in their career, their attitude toward the discipline, and the attractiveness of clinical chemistry as a career. Design .- The residents of all pathology residency programs in the United States were given the opportunity to participate in an online survey...
September 28, 2016: Archives of Pathology & Laboratory Medicine
Avi Z Rosenberg, Weiying Yu, D Ashley Hill, Christine A Reyes, David A Schwartz
Context .- The placenta is an important component in understanding the fetal response to intrauterine Zika virus infection, but the pathologic changes in this organ remain largely unknown. Hofbauer cells are fetal-derived macrophages normally present in the chorionic villous stroma. They have been implicated in a variety of physiological and pathologic processes, in particular involving infectious agents. Objectives .- To characterize the fetal and maternal responses and viral localization in the placenta following Zika virus transmission to an 11 weeks' gestation fetus...
September 28, 2016: Archives of Pathology & Laboratory Medicine
Lohith S Bachegowda, Yan H Cheng, Thomas Long, Beth H Shaz
Context .- Substantial variability between different antibody titration methods prompted development and introduction of uniform methods in 2008. Objective .- To determine whether uniform methods consistently decrease interlaboratory variation in proficiency testing. Design .- Proficiency testing data for antibody titration between 2009 and 2013 were obtained from the College of American Pathologists. Each laboratory was supplied plasma and red cells to determine anti-A and anti-D antibody titers by their standard method: gel or tube by uniform or other methods at different testing phases (immediate spin and/or room temperature [anti-A], and/or anti-human globulin [AHG: anti-A and anti-D]) with different additives...
September 28, 2016: Archives of Pathology & Laboratory Medicine
Simon Chiosea, Sylvia L Asa, Michael A Berman, Sally E Carty, Louanne Currence, Steven Hodak, Yuri E Nikiforov, Mary S Richardson, Raja R Seethala, Lynette M Sholl, Lester D R Thompson, Bruce M Wenig, Frank Worden
No abstract text is available yet for this article.
September 28, 2016: Archives of Pathology & Laboratory Medicine
Raul S Gonzalez, Michael A Gilger, Won Jae Huh, Kay Washington
Context .- Cardiac hepatopathy and Budd-Chiari syndrome are 2 forms of hepatic venous outflow obstruction with different pathophysiology but overlapping histologic findings, including sinusoidal dilation and centrilobular necrosis. Objective .- To determine whether a constellation of morphologic findings could help distinguish between the 2 and could suggest the diagnoses in previously undiagnosed patients. Design .- We identified 26 specimens with a diagnosis of cardiac hepatopathy and 23 with a diagnosis of Budd-Chiari syndrome...
September 28, 2016: Archives of Pathology & Laboratory Medicine
Mikhail Lisovsky, Shannon N Schutz, Michael G Drage, Xiaoying Liu, Arief A Suriawinata, Amitabh Srivastava
Context .- Evaluation of 12 or more lymph nodes (LNs) is currently used as a quality indicator for adequacy of pathologic examination of colon cancer resections. Objective .- To evaluate the utility of a focused LN search in the immediate vicinity of the tumor and a "second look" protocol in improving LN staging in colon cancer. Design .- Lymph nodes were submitted separately from the primary nodal basin (PNB) and secondary nodal basin (SNB) defined as an area less than 5 cm away and an area greater than 5 cm away from the tumor edge, respectively, in 201 consecutive resections (2010-2013)...
September 28, 2016: Archives of Pathology & Laboratory Medicine
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