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American Journal of Clinical Pathology

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https://www.readbyqxmd.com/read/28419186/cd4-negative-variant-of-cutaneous-blastic-plasmacytoid-dendritic-cell-neoplasm-with-a-novel-pbrm1-mutation-in-an-11-year-old-girl
#1
Nuri Yigit, Luisa Fernanda Suarez, Lisa Giulino Roth, Attilio Orazi, Wayne Tam
Objectives: We report a rare case of CD4- cutaneous blastic plasmacytoid dendritic cell neoplasm (BPDCN) with a novel PBRM1 mutation. Methods: An 11-year-old girl presented with an enlarged mass on her left arm and underwent an incisional biopsy. Results: Histopathologic examination and immunohistochemistry studies showed a monotonous proliferation of blasts that were CD4-, CD56+, and CD123+. There was no evidence of leukemic dissemination...
April 15, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28419183/comparison-of-the-mutational-profiles-of-primary-myelofibrosis-polycythemia-vera-and-essential-thrombocytosis
#2
Jinming Song, Mohammad Hussaini, Hailing Zhang, Haipeng Shao, Dahui Qin, Xiaohui Zhang, Zhenjun Ma, Syeda Mahrukh Hussnain Naqvi, Ling Zhang, Lynn C Moscinski
Objectives: To compare the mutational profiles of patients with primary myelofibrosis (PMF), polycythemia vera (PV), and essential thrombocytosis (ET). Methods: Next-generation sequencing results of 75 cases of PMF, 33 cases of PV, and 27 cases of ET were compared. Results: Mutation rates of ASXL1 and SRSF2 were significantly higher in PMF than in PV or ET. ASXL1 mutations appeared to be more frequently associated with risk of transformation to acute myeloid leukemia than JAK2 or TET2 mutations...
April 15, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28419185/a-new-automated-technology-for-cerebrospinal-fluid-cell-counts-comparison-of-accuracy-and-clinical-impact-of-glocyte-sysmex-xn-and-manual-methods
#3
Linda M Sandhaus, Christine A Dillman, Warren P Hinkle, Julie M MacKenzie, George Hong
Objectives: The purpose of the study was to compare the performance of GloCyte (Advanced Instruments, Norwood, MA), a new semiautomated instrument for cerebrospinal fluid cell counting, with the manual hemocytometer method and the automated Sysmex XN (Sysmex, Kobe, Japan) body fluid mode. The clinical impact of replacing the manual method with either automated method was determined. Methods: Fifty-seven samples from 38 patients were analyzed by all three methods...
April 13, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28398539/bile-cast-nephropathy-in-cirrhotic-patients-effects-of-chronic-hyperbilirubinemia
#4
Michelle Foshat, Heather M Ruff, Wayne G Fischer, Robert E Beach, Mark R Fowler, Hyunsu Ju, Judith F Aronson, Marjan Afrouzian
Objectives: The aim of this study was to determine the prevalence of bile cast nephropathy (BCN) in autopsied cirrhotic patients and to correlate BCN with clinical and laboratory data to direct attention to this underrecognized renal complication of liver failure. Methods: We assessed 114 autopsy cases of cirrhosis for the presence of renal intratubular bile casts using Hall stain for bile. Presence of bile casts was correlated with etiology of cirrhosis, clinical and laboratory data, and histologic findings...
April 7, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28398518/epigenetic-regulation-of-cd133-in-gastrointestinal-stromal-tumors
#5
Helene Geddert, Alexander Braun, Claudia Kayser, Arno Dimmler, Gerhard Faller, Abbas Agaimy, Florian Haller, Evgeny A Moskalev
Objectives: This study ascertained the regulation of the stem cell marker CD133 and its potential applicability for prognostication of gastrointestinal stromal tumors (GISTs). Methods: A total of 95 resected GISTs were included in the study. CD133 protein expression was assessed immunohistochemically on tissue microarrays. Methylation percentage was quantified by pyrosequencing. Gene expression in cell lines GIST48b and GIST882 upon treatment with DNA demethylation agent 5-aza-2'-deoxycytidine was analyzed by quantitative polymerase chain reaction...
April 7, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28398455/systematic-evaluation-of-endothelin-1-measurement-relative-to-traditional-and-modern-biomarkers-for-clinical-assessment-and-prognosis-in-patients-with-chronic-systolic-heart-failure-serial-measurement-and-multimarker-testing
#6
Hanna K Gaggin, Quynh A Truong, Parul U Gandhi, Shweta R Motiwala, Arianna M Belcher, Rory B Weiner, Aaron L Baggish, James L Januzzi
Objectives: To define the role of single or serial measurement of endothelin 1 (ET-1) for prognostication beyond traditional and modern markers of risk in heart failure (HF). Methods: In total, 115 patients with chronic systolic HF were followed for 10 months. Clinical assessment and ET-1, N-terminal pro-B-type natriuretic peptide (NT-proBNP), highly sensitive troponin I (hsTnI), soluble ST2 (sST2), and galectin 3 were measured at each visit. Results: Elevated ET-1 was associated with worse HF, lower right ventricular function, higher pulmonary pressure, and higher left atrial volume index despite similar left ventricular function...
April 7, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28371845/impact-of-consensus-conference-review-on-diagnostic-disagreements-in-the-evaluation-of-cervical-biopsy-specimens
#7
Lester J Layfield, Richard D Hammer, Shellaine R Frazier, Magda Esebua, William W Bivin, Katsiaryna Laziuk, Van T Nguyen, Eric Johannesen, Robert L Schmidt
Objectives: To determine the impact of consensus conferences on the frequency of discrepant cases in a surgical pathology practice. Methods: The percentage of discrepancies in cases reviewed at a weekly consensus conference was calculated for the first and last months of a 13-month period. Both interrater agreement and agreement with the consensus diagnoses were assessed. A total of 309 diagnoses were performed for the first month and 518 for the last month. Both absolute and chance-corrected agreement were calculated for each period...
March 25, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28371875/plasmacytoid-urothelial-carcinoma-of-the-urinary-bladder-a-clinicopathologic-and-immunohistochemical-analysis-of-49-cases
#8
Melanie D Fox, Li Xiao, Miao Zhang, Ashish M Kamat, Arlene Siefker-Radtke, Li Zhang, Colin P Dinney, Bogdan Czerniak, Charles C Guo
Objectives: Plasmacytoid urothelial carcinoma (PUC) of the bladder is a rare histologic variant. We retrospectively analyzed a large series of bladder PUC from a single institution. Methods: The patients consisted of 44 men and five women with a mean age of 62 years (range, 45-86 years). Results: PUC was pure in 23 cases and mixed with other histologic types in 26 cases. All PUCs diffusely invaded the bladder wall. Most PUCs lacked immunoreactivity for the retinoblastoma (RB) gene protein (12/32) and E-cadherin (8/30)...
March 23, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28371931/critical-value-reporting-in-transfusion-medicine-a-survey-of-communication-practices-in-us-facilities
#9
Erika M Reese, Randin C Nelson, Willy A Flegel, Karen M Byrne, Garrett S Booth
Objectives: While critical value procedures have been adopted in most areas of the clinical laboratory, their use in transfusion medicine has not been reviewed in detail. The results of this study present a comprehensive overview of critical value reporting and communication practices in transfusion medicine in the United States. Methods: A web-based survey was developed to collect data on the prevalence of critical value procedures and practices of communicating results...
March 21, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28340228/dual-immunostain-with-satb2-and-ck20-differentiates-appendiceal-mucinous-neoplasms-from-ovarian-mucinous-neoplasms
#10
Zaibo Li, Rachel Roth, Jonathan B Rock, Amy Lehman, William L Marsh, Adrian Suarez, Wendy L Frankel
Objectives: Determination of the primary site of origin for mucinous neoplasms identified in the peritoneal and/or pelvic cavities may be challenging, with major differential diagnoses including appendiceal mucinous neoplasm (AMN) and ovarian mucinous neoplasm (OMN). Special AT-rich sequence binding protein 2 (SATB2) has been shown to be highly selectively expressed in the lower gastrointestinal tract, including the appendix. Methods: We investigated the utility of a dual stain (DS) with SATB2 or caudal type homeobox 2 (CDX2) and cytokeratin 20 (CK20) or villin in distinguishing AMNs from OMNs...
March 18, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28340235/polymerase-chain-reaction-human-papillomavirus-hpv-detection-and-hpv-genotyping-in-invasive-cervical-cancers-with-prior-negative-hc2-test-results
#11
Xiang Tao, Baowen Zheng, Fufen Yin, Zhengyu Zeng, Zaibo Li, Christopher C Griffith, Bing Luo, Xiangdong Ding, Xianrong Zhou, Chengquan Zhao
Objectives: Recently, three large Chinese cohort studies showed that 7.5% to 15.5% of patients with cervical carcinoma had negative high-risk human papillomavirus (hrHPV) test results on prior cytology specimens. These studies raise the question as to whether these negative hrHPV results represent truly hrHPV-negative carcinomas or false-negative hrHPV test results due to limitations in the testing of cytology specimens. This is increasingly an important question with increasing push to use hrHPV testing alone to screen for cervical cancer...
March 15, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28165529/molecular-biomarkers-for-the-evaluation-of-colorectal-cancer
#12
Antonia R Sepulveda, Stanley R Hamilton, Carmen J Allegra, Wayne Grody, Allison M Cushman-Vokoun, William K Funkhouser, Scott E Kopetz, Christopher Lieu, Noralane M Lindor, Bruce D Minsky, Federico A Monzon, Daniel J Sargent, Veena M Singh, Joseph Willis, Jennifer Clark, Carol Colasacco, R Bryan Rumble, Robyn Temple-Smolkin, Christina B Ventura, Jan A Nowak
No abstract text is available yet for this article.
February 3, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28375435/diagnostic-criteria-for-polycythemia-vera-difference-in-changes-between-males-and-females
#13
Richard A Horvitz
No abstract text is available yet for this article.
April 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28375434/most-myeloid-neoplasms-with-deletion-of-chromosome-16q-are-distinct-from-acute-myeloid-leukemia-with-inv-16-p13-1q22-a-bone-marrow-pathology-group-multicenter-study
#14
MULTICENTER STUDY
Heesun J Rogers, Eric D Hsi, Guilin Tang, Sa A Wang, Carlos E Bueso-Ramos, Daniel Lubin, Jennifer J D Morrissette, Adam Bagg, Durga P Cherukuri, Tracy I George, LoAnn Peterson, Yen-Chun Liu, Susan Mathew, Attilio Orazi, Robert P Hasserjian
Objectives: Isolated deletion of the long arm of chromosome 16 (del(16q)) is rare in myeloid neoplasms (MNs) and was historically considered a variant of inv(16)(p13.1q22) (inv(16)), a subtype of acute myeloid leukemia (AML) associated with CBFB-MYH11 rearrangement and favorable prognosis. This study aims to determine clinicopathologic characteristics of patients with isolated del(16q) in MNs in comparison to AMLs with isolated inv(16). Methods: Clinicopathologic features were retrospectively reviewed in 18 MNs with del(16q) and 34 AMLs with inv(16) patients from seven institutions...
April 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28375433/breast-tumor-resembling-tall-cell-variant-of-papillary-thyroid-carcinoma-a-solid-papillary-neoplasm-with-characteristic-immunohistochemical-profile-and-few-recurrent-mutations
#15
Rohit Bhargava, Anca V Florea, Manuela Pelmus, Miroslawa W Jones, Marguerite Bonaventura, Abigail Wald, Marina Nikiforova
Objectives: Breast tumor resembling tall cell variant of papillary thyroid carcinoma (BTRPTC) is a rare breast lesion that is unrelated to thyroid carcinoma. Morphologically, it shows a solid papillary lesion with bland cytology, eosinophilic/amphophilic secretions, nuclear grooves, reversal of nuclear polarity (recently described), and nuclear inclusions. Clinical course is often uneventful with few exceptions reported in the literature. Herein, we report three additional cases. Methods: Immunohistochemical staining and next-generation sequencing was performed on all three cases...
April 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28340255/massive-gastric-juvenile-polyposis-a-clinicopathologic-study-using-smad4-immunohistochemistry
#16
Margaret E Lawless, Daniel L Toweill, Kim D Jewell, Dhanpat Jain, Laura Lamps, Alyssa M Krasinskas, Paul E Swanson, Melissa P Upton, Matthew M Yeh
Objectives: Juvenile polyps involving the stomach are uncommon. Massive gastric juvenile polyposis is even rarer. Methods: We describe the clinicopathologic features of nine cases of massive gastric juvenile polyposis. Results: All patients had anemia; four had hypoalbuminemia. The polyps were composed predominantly of dilated crypts lined by columnar epithelium and abundant edematous stroma with mixed inflammatory infiltrates. One patient had a poorly differentiated adenocarcinoma, arising in juvenile polyp-associated intraepithelial neoplasia...
April 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28340222/success-in-implementation-of-a-resident-in-service-examination-review-series
#17
Jessica A Forcucci, J Madison Hyer, Evelyn T Bruner, David N Lewin, Nicholas I Batalis
Objectives: Primary pathology board certification has been correlated with senior resident in-service examination (RISE) performance. We describe our success with an annual, month-long review series. Methods: Aggregate program RISE performance data were gathered for 3 years prior to and 3 years following initiation of the review series. In addition, mean United States Medical Licensing Examination Step 1 and 2 Clinical Knowledge scores for residents participating in each RISE examination were obtained to control for incoming knowledge and test-taking ability...
April 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28340220/her2-neu-status-determination-in-breast-cancer-a-single-institutional-experience-using-a-dual-testing-approach-with-immunohistochemistry-and-fluorescence-in-situ-hybridization
#18
James P Solomon, Marie Dell'Aquila, Oluwole Fadare, Farnaz Hasteh
Objectives: According to current guidelines, either immunohistochemistry (IHC) or in situ hybridization (ISH) can be used to determine human epidermal growth factor receptor 2 (Her2/neu) status in breast carcinoma. While the guidelines explicitly delineate result interpretation, there is no consensus on the most appropriate testing algorithm. Methods: The Her2/neu statuses of 369 consecutive cases of invasive breast cancer (from 351 patients) were assessed in a dual-testing algorithm that uses both IHC and fluorescence ISH (FISH)...
April 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28340210/clinical-significance-of-isolated-myeloperoxidase-expression-in-pediatric-b-lymphoblastic-leukemia
#19
Matthew J Oberley, Sisi Li, Etan Orgel, Choo Phei Wee, Ashley Hagiya, Maurice R G O'Gorman
Objectives: Diagnosis of B-cell acute lymphoblastic leukemia (B-ALL) requires immunophenotypic evidence of B-lineage and absence of specific myeloid or T-lineage markers. Rare cases of otherwise typical B-ALL express myeloperoxidase (MPO) detectable by flow cytometry with an absence of other myeloid markers, but the clinical significance of this finding is not well studied. Methods: A retrospective cohort analysis of flow cytometry and clinical data was performed to investigate the clinical outcome of this specific group of patients...
April 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28340183/crlf2-positive-b-cell-acute-lymphoblastic-leukemia-in-adult-patients-a-single-institution-experience
#20
Sergej Konoplev, Xinyan Lu, Marina Konopleva, Nitin Jain, Juan Ouyang, Maitrayee Goswami, Kathryn G Roberts, Marc Valentine, Charles G Mullighan, Carlos Bueso-Ramos, Patrick A Zweidler-McKay, Jeffrey L Jorgensen, Sa A Wang
Objectives: Cytokine receptor-like factor 2 ( CRLF2 ) rearrangement is found in approximately 50% of pediatric Ph-like B-cell acute lymphoblastic leukemia (B-ALL), and around 50% of CRLF2 + cases harbor JAK mutations. We analyzed CRLF2 expression and studied its correlation with CRLF2 rearrangement in adult patients with B-ALL. Methods: Multiparameter flow cytometry (MFC) was performed consecutively in 126 patients. Results: CRLF2 overexpression was detected in 30 (27%) patients, 28 (41%) of 69 patients with B-ALL not otherwise specified, 14 (21%) of 67 untreated patients, and 16 (27%) of 59 patients with relapsed B-ALL, with the highest among Hispanic patients (25/55, 45%)...
April 1, 2017: American Journal of Clinical Pathology
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