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https://www.readbyqxmd.com/read/29153888/-the-2015-classification-of-lung-adenocarcinomas-reproducibility-in-a-tunisian-department-specialised-in-thoracic-pathology
#1
Mona Mlika, Imen Helal, Emna Braham, Aida Ayadi, Ali Mrabet, Faouzi Mezni
INTRODUCTION: The new classification of lung cancer contains modifications of terminology and a new subdivision of the tumors with the most relevant modifications concerning the group of adenocarcinomas. The latter has been increasing and represents nowadays the most frequent type. Our aim was to assess the reproducibility of the new classification through the experience of a Department of Pathology specialized in thoracic pathology. METHODS: Our study included initially 106 cases diagnosed as adenocarcinomas and reviewed by 2 pathologists and 1 referee...
November 16, 2017: Annales de Pathologie
https://www.readbyqxmd.com/read/29153840/association-of-omics-features-with-histopathology-patterns-in-lung-adenocarcinoma
#2
Kun-Hsing Yu, Gerald J Berry, Daniel L Rubin, Christopher Ré, Russ B Altman, Michael Snyder
Adenocarcinoma accounts for more than 40% of lung malignancy, and microscopic pathology evaluation is indispensable for its diagnosis. However, how histopathology findings relate to molecular abnormalities remains largely unknown. Here, we obtained H&E-stained whole-slide histopathology images, pathology reports, RNA sequencing, and proteomics data of 538 lung adenocarcinoma patients from The Cancer Genome Atlas and used these to identify molecular pathways associated with histopathology patterns. We report cell-cycle regulation and nucleotide binding pathways underpinning tumor cell dedifferentiation, and we predicted histology grade using transcriptomics and proteomics signatures (area under curve >0...
November 13, 2017: Cell Systems
https://www.readbyqxmd.com/read/29131539/molecular-testing-on-endobronchial-ultrasound-ebus-fine-needle-aspirates-fna-impact-of-triage
#3
Simon Sung, John P Crapanzano, David DiBardino, David Swinarski, William A Bulman, Anjali Saqi
BACKGROUND: Endobronchial ultrasound (EBUS)-guided fine needle aspiration (FNA) is performed to diagnose and stage lung cancer. Multiple studies have described the value of Rapid On-Site Evaluation (ROSE), but often the emphasis is upon diagnosis than adequacy for molecular testing (MT). The aim was to identify variable(s), especially cytology-related, that can improve MT. METHODS: A search for EBUS-FNAs with ROSE was conducted for lung adenocarcinomas or when this diagnosis could not be excluded...
November 12, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29124891/the-diagnostic-value-of-tissue-button-technique-for-specimen-accusation-during-endobronchial-ultrasound-guided-transbronchial-fine-needle-aspiration
#4
Oren Fruchter, Anna Breslavsky, Tatyana Brozgol, Anna Grossman, Kessi Mikhailova, Alexey Bugayov, Kassa Shimelis, Hananya Vaknine, Oleg Sukmanov
INTRODUCTION: The quality of tissue acquisition during Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a major determinant of the diagnostic yield of the procedure. In the tissue button (TB ) technique the retrieved cellular specimen is fixed in ethanol and subsequently scraped from slide using surgical blade into formaldehyde and processed like ordinary tissue biopsy thus potentially increasing its diagnostic value. OBJECTIVES: To retrospectively evaluate the diagnostic yield of a TB technique in patients undergoing EBUS-TBNA for various malignant and benign conditions...
November 10, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29090479/utility-of-lung-ultrasonography-for-detection-of-pleural-adhesions-in-dogs
#5
Akiko Uemura, Toshiharu Fukayama, Takashi Tanaka, Ryou Tanaka
OBJECTIVES: To assess lung respiratory movement ("lung sliding") in dogs using B-mode ultrasonography (US) and to develop a method that assesses adhesions between the parietal pleura and the lung. METHODS: Seventeen male beagles were anesthetized, and respiratory management was performed with intermittent positive pressure ventilation. Lung-sliding assessments and adhesion examinations were performed with lung US under general anesthesia before and 2 weeks after thoracotomy...
November 1, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29051570/prediction-of-recurrence-in-early-stage-non-small-cell-lung-cancer-using-computer-extracted-nuclear-features-from-digital-h-e-images
#6
Xiangxue Wang, Andrew Janowczyk, Yu Zhou, Rajat Thawani, Pingfu Fu, Kurt Schalper, Vamsidhar Velcheti, Anant Madabhushi
Identification of patients with early stage non-small cell lung cancer (NSCLC) with high risk of recurrence could help identify patients who would receive additional benefit from adjuvant therapy. In this work, we present a computational histomorphometric image classifier using nuclear orientation, texture, shape, and tumor architecture to predict disease recurrence in early stage NSCLC from digitized H&E tissue microarray (TMA) slides. Using a retrospective cohort of early stage NSCLC patients (Cohort #1, n = 70), we constructed a supervised classification model involving the most predictive features associated with disease recurrence...
October 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29044506/a-retrospective-study-of-the-investigation-of-homicidal-childhood-asphyxial-deaths
#7
Theodore T Brown, Nick I Batalis, Joni L McClain, Tracey Corey, Kim A Collins, Jeffrey M Jentzen, Joseph A Prahlow
As one of the leading causes of traumatic deaths in newborns, infants, and young children, there is no anatomic or microscopic feature that is pathognomonic for asphyxial deaths. Instead, pathologists rely on investigation information, including confessions and/or witness statements, and potential evidence at the scene. Twenty cases of homicidal newborn, infant, and young children asphyxial deaths were reviewed, which included death and police investigation reports and autopsy reports, as well as histology slides of lung sections...
October 16, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/29033472/histopathological-analysis-of-the-f344-rat-lung-upon-exposure-to-retenoic-acid-ovalbumin-mold-spores-and-citral
#8
Ibrahim O Farah, Carlene Holt-Gray, Joseph A Cameron, Michelle Tucci, Hamed Benghuzzi
The paradoxical role of retinoic acid (All Trans Retinoic Acid; ATRA) in the development of allergic and/or inflammatory complications in contrast to a therapeutic modality for lung pathology is not well understood or established in the literature. As well, the role of Citral (inhibitor of retinoid function; a non-toxic chemical that exists in two forms (diethyl; C1 or cis-trans dimethyl; C2), in the reversal of retinoic acid, ovalbumin and allergic mold spore pathophysiology is also not well ascertained under an in vivo setting...
March 2017: Biomedical Sciences Instrumentation
https://www.readbyqxmd.com/read/29024453/the-histopathologic-reliability-of-tissue-taken-from-cadavers-within-the-gross-anatomy-laboratory
#9
Guenevere Rae, William P Newman, Robin McGoey, Supriya Donthamsetty, Aryn C Karpinski, Jeffrey Green
The purpose of this study was to examine the histopathologic reliability of embalmed cadaveric tissue taken from the gross anatomy laboratory. Tissue samples from hearts, livers, lungs, and kidneys were collected after the medical students' dissection course was completed. All of the cadavers were embalmed in a formalin-based fixative solution. The tissue was processed, embedded in paraffin, sectioned at six micrometers, and stained with H&E. The microscope slides were evaluated by a board certified pathologist to determine whether the cellular components of the tissues were preserved at a high enough quality to allow for histopathologic diagnosis...
October 10, 2017: Anatomical Sciences Education
https://www.readbyqxmd.com/read/28983164/extensively-metastasizing-leiomyosarcoma-a-diagnostic-challenge
#10
Arvind Ahuja, Poojan Agarwal, Rohan Sardana, Suryanarayanan Bhaskar
Uterine leiomyosarcoma (ULMS) is a rare malignancy of the female genital tract and carries an extremely poor 5-year survival rate. It is known to metastasize early and to distant sites owing to a high propensity for hematogeneous spread. Lung, peritoneum, liver, and bone are relatively common sites of metastasis. Patient age, tumor size, FIGO stage, and grade of the tumor are important criteria for predicting metastasis. The incidence of ULMS is increasing, probably due to the use of improved imaging techniques and as a result of cancer patients' prolonged life expectancy...
July 2017: Journal of Mid-life Health
https://www.readbyqxmd.com/read/28967802/current-evidence-does-not-warrant-frozen-section-evaluation-for-the-presence-of-tumor-spread-through-alveolar-spaces
#11
Ann E Walts, Alberto M Marchevsky
CONTEXT: - Tumor spread through alveolar spaces (STAS) has been correlated with unfavorable prognosis in lung adenocarcinomas treated with sublobar resection, but it is unknown whether STAS can be reliably identified in frozen section (FS) to help stratify patients for lobectomy or sublobar resection. OBJECTIVE: - To evaluate STAS in FS. DESIGN: - Tumor spread through alveolar spaces was evaluated in hematoxylin-eosin-stained FS, FS control slides, and all additional slides with lung tissue adjacent to tumor (AdLT) from 48 pT1-2 adenocarcinomas operated on using video-assisted thoracotomy (n = 25) or open thoracotomy (n = 23)...
October 2, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28966837/a-methodology-for-texture-feature-based-quality-assessment-in-nucleus-segmentation-of-histopathology-image
#12
Si Wen, Tahsin M Kurc, Yi Gao, Tianhao Zhao, Joel H Saltz, Wei Zhu
CONTEXT: Image segmentation pipelines often are sensitive to algorithm input parameters. Algorithm parameters optimized for a set of images do not necessarily produce good-quality-segmentation results for other images. Even within an image, some regions may not be well segmented due to a number of factors, including multiple pieces of tissue with distinct characteristics, differences in staining of the tissue, normal versus tumor regions, and tumor heterogeneity. Evaluation of quality of segmentation results is an important step in image analysis...
2017: Journal of Pathology Informatics
https://www.readbyqxmd.com/read/28927949/a-novel-method-of-assessing-for-lung-sliding-using-doppler-imaging
#13
REVIEW
Gabriel Rose, Sebastian Siadecki, Ryan Tansek, Nadia Baranchuk, Turandot Saul
Ultrasound is an ideal modality in the emergency department (ED) to assess for pneumothorax given its rapid availability, portability, and repeatability to assess clinical status changes. Certain patient populations and clinical circumstances may present challenges to the performance of this examination. In this article, we review patterns of the presence or absence of lung sliding in the commonly utilized sonographic modes in the ED setting. We also describe a novel technique to evaluate lung sliding using tissue Doppler...
November 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28916508/development-of-a-whole-slide-imaging-system-on-smartphones-and-evaluation-with-frozen-section-samples
#14
Hong Yu, Feng Gao, Liren Jiang, Shuoxin Ma
BACKGROUND: The aim was to develop scalable Whole Slide Imaging (sWSI), a WSI system based on mainstream smartphones coupled with regular optical microscopes. This ultra-low-cost solution should offer diagnostic-ready imaging quality on par with standalone scanners, supporting both oil and dry objective lenses of different magnifications, and reasonably high throughput. These performance metrics should be evaluated by expert pathologists and match those of high-end scanners. OBJECTIVE: The aim was to develop scalable Whole Slide Imaging (sWSI), a whole slide imaging system based on smartphones coupled with optical microscopes...
September 15, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28894053/-prediction-of-pleural-adherence-area-used-by-ultrasound-sonography
#15
Atsushi Sekimura, Takashi Yoshimatsu, Naoki Yamashita, Hanae Higa, Takeaki Miyata, Daigo Kawano, Tetsuya So, Hidetaka Uramoto
Video-assisted thoracoscopic surgery has been used to treat lung cancer. However, pleural adhesions may increase the risk of lung injury while making the access port. We report a case of lung cancer in which preoperative lung ultrasound sonography was used to predict the pleural adherence area. An octogenarian man had undergone chest surgery for right spontaneous pneumothorax 20 years ago. He was recently diagnosed with a right middle lobe carcinoma and thoracoscopic surgery was scheduled. On preoperative lung ultrasound sonography, adhesion in the area surrounding the previous incision line was predicted to be strong...
September 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28889160/interprofessional-education-in-allied-health-using-virtual-technologies
#16
Amber D Donnelly, Maheswari S Mukherjee, Jana Koth, Lisa Bartenhagen
BACKGROUND: Interprofessional education (IPE) is becoming increasingly prevalent in health science education, with the goal of preparing students to work collaboratively in teams within the healthcare environment. Students in our cytotechnology and radiation therapy (RT) programs used virtual technologies to demonstrate their professions using case studies. The purpose of this activity was to see if our students' knowledge of each other's professions and educational technologies increased and if the students had a better understanding of how they would work together in a healthcare team...
2017: Journal of Allied Health
https://www.readbyqxmd.com/read/28884747/adverse-prognostic-value-of-pd-l1-expression-in-primary-resected-pulmonary-squamous-cell-carcinomas-and-paired-mediastinal-lymph-node-metastases
#17
Manuel D Keller, Christina Neppl, Yasin Irmak, Sean R Hall, Ralph A Schmid, Rupert Langer, Sabina Berezowska
Immunohistochemical assessment of programmed cell death (PD)-ligand 1 (PD-L1) expression in lung cancer in the context of therapeutically targeting the PD1/PD-L1 axis is still controversially discussed. This includes the comparability of antibody clones, prognostic value, and discrepancies between primary tumors and metastases. We assessed tumoral PD-L1 expression using clones E1L3N and SP142 in 372 primary resected pulmonary squamous cell carcinomas, including 40 paired N2 lymph node metastases, in relation with clinico-pathological parameters...
September 8, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28870520/loss-of-nrf2-promotes-alveolar-type-2-cell-loss-in-irradiated-fibrotic-lung
#18
Geri Traver, Stacey Mont, David Gius, William E Lawson, George X Ding, Konjeti R Sekhar, Michael L Freeman
The development of radiation-induced pulmonary fibrosis represents a critical clinical issue limiting delivery of therapeutic doses of radiation to non-small cell lung cancer. Identification of the cell types whose injury initiates a fibrotic response and the underlying biological factors that govern that response are needed for developing strategies that prevent or mitigate fibrosis. C57BL/6 mice (wild type, Nrf2 null, Nrf2(flox/flox), and Nrf2(Δ/Δ); SPC-Cre) were administered a thoracic dose of 12Gy and allowed to recover for 250 days...
November 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28861425/single-incision-video-assisted-thoracoscopic-evaluation-and-emergent-surgery-for-severe-lung-and-chest-wall-injury-after-thoracic-trauma-in-a-water-park
#19
Julio Sesma, Melodie Alvarez, Francisco Lirio, Carlos Galvez, Maria Galiana, Benno Baschwitz, Francisca Fornes, Sergio Bolufer
Thoracic trauma is a challenging situation with potential severe chest wall and intrathoracic organ injuries. We present a case of emergent surgery in a 23-year-old man with hemorrhagic shock due to massive lung and chest wall injury after thoracic trauma in a water slide. We performed a SI-VATS approach in order to define intrathoracic and chest wall injuries, and once checked the extension of the chest wall injury, we added a middle size thoracotomy just over the affected area in order to stabilize rib fractures with Judet plates, that had caused massive laceration in left lower lobe (LLL) and injured the pericardium causing myocardical tear...
August 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28845077/3d-convolutional-neural-network-for-automatic-detection-of-lung-nodules-in-chest-ct
#20
Sardar Hamidian, Berkman Sahiner, Nicholas Petrick, Aria Pezeshk
Deep convolutional neural networks (CNNs) form the backbone of many state-of-the-art computer vision systems for classification and segmentation of 2D images. The same principles and architectures can be extended to three dimensions to obtain 3D CNNs that are suitable for volumetric data such as CT scans. In this work, we train a 3D CNN for automatic detection of pulmonary nodules in chest CT images using volumes of interest extracted from the LIDC dataset. We then convert the 3D CNN which has a fixed field of view to a 3D fully convolutional network (FCN) which can generate the score map for the entire volume efficiently in a single pass...
2017: Proceedings of SPIE
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