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Gross pathology

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https://www.readbyqxmd.com/read/28809618/corneal-donations-in-south-africa-a-15-year-review
#1
Nicholas J York, Christopher Tinley
BACKGROUND: Corneal pathology is one of the leading causes of preventable blindness in South Africa (SA). A corneal transplant can restore or significantly improve vision in most cases. However, in SA there is a gross shortage of corneal tissue available to ophthalmologists. Little has been published describing the magnitude of the problem. OBJECTIVES: To describe trends in the number of corneal donors per year in SA, the number of corneal transplants performed each year, the origin of donors, the allocation of corneas to the public or private sector, and the demographics of donors...
July 28, 2017: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
https://www.readbyqxmd.com/read/28808787/malignant-transformation-of-a-conservatively-managed-incidental-childhood-cerebral-mass-lesion-controversy-regarding-management-paradigm
#2
Jehuda Soleman, Jonathan Roth, Zvi Ram, Michal Yalon, Shlomi Constantini
BACKGROUND: Incidental findings on neuroimaging in the pediatric population are an emerging treatment challenge. Treatment options for these incidental childhood brain mass lesions, which radiologically may be assumed to be low-grade gliomas (LGG), vary, ranging from careful conservative "wait and scan" treatment to surgical biopsy, gross total resection, and upfront radiation and/or chemotherapy. As malignant transformation of LGG in children is extremely rare, some series advocate careful conservative management of these lesions; however, universal treatment protocols are not totally agreed upon...
August 14, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28806980/factors-influencing-outcomes-after-medial-hamstring-lengthening-with-semitendinosus-transfer-in-patients-with-cerebral-palsy
#3
Ki Hyuk Sung, Jaebong Lee, Chin Youb Chung, Kyoung Min Lee, Byung Chae Cho, Seung Jun Moon, Jaeyoung Kim, Moon Seok Park
BACKGROUND: Although several studies have investigated the outcomes after distal hamstring lengthening (DHL), no study has undertaken an approach that included all or most of the important factors that could influence the results. This study was performed to evaluate the outcomes after DHL and analyze the factors that influence the improvement and serial change in knee motion after surgery in patients with cerebral palsy (CP), using a linear mixed model (LMM). METHODS: The study included 314 ambulatory CP patients (594 limbs) with spsastic diplegia who were followed up after undergoing DHL as part of a single-event multilevel surgery and who underwent preoperative and postoperative 3-dimensional (3D) gait analyses...
August 14, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28803168/metastatic-cardiac-angiosarcoma-to-the-lung-spine-and-brain-a-case-report-and-review-of-the-literature
#4
Chih-Ta Lin, Katrina Ducis, Suzanne Tucker, Bruce Tranmer
BACKGROUND: Metastatic angiosarcoma to the brain is a rare entity without an established management protocol. CASE DESCRIPTION: The authors describe a case of primary cardiac angiosarcoma with a rare brain metastasis in an adult. This patient underwent successful resection of his brain metastasis and was initiated on only chemotherapy for his systemic disease. The patient did not develop local recurrence. A review of primary and metastatic CNS angiosarcoma, its pathologic features, clinical disease course, treatment strategies and genomics is also described...
August 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28803058/survey-of-ferns-and-clinico-pathological-studies-on-the-field-cases-of-enzootic-bovine-haematuria-in-himachal-pradesh-a-north-western-himalayan-state-of-india
#5
Sarvesh K Rai, Rinku Sharma, Alka Kumari, Lars H Rasmussen, Rajendra D Patil, Rasbehari Bhar
Enzootic bovine haematuria (EBH) in cattle occurs in upland areas of the world. In India, the disease is present in isolated pockets in the Himalayas and in the Nilgiri Hills. The variation in the disease incidence has been attributed to different environmental conditions and animal rearing practices followed in the different regions. The aim of the study was to conduct field surveys in parts of EBH endemic regions of Himachal Pradesh, a north-western Himalayan state of India. Out of the total 103 plant samples collected, a total of 95 samples were identified as ferns...
August 9, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28802411/the-minipig-as-an-animal-model-to-study-mycobacterium-tuberculosis-infection-and-natural-transmission
#6
Laylaa Ramos, Andres Obregon-Henao, Marcela Henao-Tamayo, Richard Bowen, Joan K Lunney, Mercedes Gonzalez-Juarrero
In endemic countries more than 20% of tuberculosis (TB) cases are in infants and children. Current animal models study TB during adulthood but animal models for infant TB are scarce. Here we propose that minipigs can be used as an animal model to study adult, adolescent and infant TB including natural transmission. In these studies, two-month old minipigs (representing infant age in humans) and six-month old minipigs (representing adolescence in humans) were infected via the aerosol route with hyper-virulent clinical strain W-Beijing Mycobacterium tuberculosis (Mtb) HN878 and were monitored for 11 or 36 weeks post-challenge, respectively...
September 2017: Tuberculosis
https://www.readbyqxmd.com/read/28798534/a-case-of-spontaneous-purulent-granulomatous-pericarditis-in-a-beagle
#7
Kyohei Kamio, Yutaka Nakanishi, Kenta Matsue, Minoru Sasaki
The present report describes a case of spontaneous purulent granulomatous pericarditis in a 16-month-old beagle. A gross necropsy revealed pericardial effusion and multiple nodules on the surface of the heart and around the aorta adjacent to the heart. The cut surface of these nodules was solid and white in color, containing partially yellowish white regions. Microscopically, granulomatous inflammation characterized by central necrotic cellular debris surrounded by neutrophils, macrophages, lymphocytes, plasma cells, fibroblasts and collagen fibers was observed in the epicardium...
July 2017: Journal of Toxicologic Pathology
https://www.readbyqxmd.com/read/28798366/elevated-serum-antibody-against-schistosoma-japonicum-hsp60-as-a-promising-biomarker-for-liver-pathology-in-schistosomiasis
#8
Xiaojun Chen, Wei Li, Yalin Li, Lei Xu, Sha Zhou, Jifeng Zhu, Zhipeng Xu, Feng Liu, Dandan Lin, Fei Hu, Yuemin Liu, Wen Jiang, Liwang Cui, Chuan Su
The pathology associated with Schistosoma japonicum (S. japonicum) infection in humans is attributed to parasite egg-induced granulomatous inflammation and fibrosis in the host liver. Currently, a marker that is reliable, cheap, less device-dependent, and can be easily and repeatedly used on a large scale to monitor the progression of liver pathology in schistosomiasis japonica endemic areas is lacking. The levels of serum S. japonicum heat shock protein 60 (SjHSP60)-specific IgG and its subtype antibodies in animals (mice and rabbits) or patients with schistosomiasis were measured by ELISA...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28796040/primary-malignant-mesenchymoma-of-bladder-case-report-and-review-of-the-literature
#9
Zecheng Yang, Xiaodong Yang, Xianqi Lu, Lijian Gao, Gang Li, Xuefeng Zhang
RATIONALE: Malignant mesenchymoma (MM) is defined as a heterogeneous malignant soft tissue tumor that consists of 2 or more distinctly different mesenchymal components in addition to fibrosarcomatous elements. Bladder MM was rarely reported in the literature and there are only 5 cases of primary bladder MM documented in English literature to date. PATIENT CONCERNS: A 58-year-old male complained of difficulty in urination and intermittent gross hematuria for 3 months...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28795842/recommendations-for-pathologic-evaluation-of-reduction-mammoplasty-specimens-a-prospective-study-with-systematic-tissue-sampling
#10
Abiy B Ambaye, Andrew J Goodwin, Susan E MacLennan, Shelly Naud, Donald L Weaver
CONTEXT: - Breast reduction mammaplasty (RMP) for symptomatic macromastia or correction of asymmetry is performed in more than 100 000 patients per year in the United States. The reported incidence of significant pathologic findings (SPF), that is, carcinoma and atypical hyperplasia, ranges from 0.06% to 12.8%. No standard pathology assessment for RMP exists. OBJECTIVES: - To propose standard sampling for microscopic evaluation in RMP specimens, to evaluate the incidence of occult carcinoma and atypical hyperplasia, and to identify clinical risk factors for SPF in patients undergoing RMP...
August 10, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28791352/establishment-of-a-murine-pancreatic-cancer-pain-model-and-microarray-analysis-of-pain%C3%A2-associated-genes-in-the-spinal-cord-dorsal-horn
#11
Liqin Wang, Huihong Xu, Yanhu Ge, Hai Zhu, Dawei Yu, Weifeng Yu, Zhijie Lu
There is emerging evidence on the mechanisms of pancreatic cancer pain. Following the establishment of an orthotropic transplantation model of pancreatic cancer, microarray analysis was performed to identify changes in the expression levels of pain‑associated genes in the spinal cord. A mouse model of pancreatic cancer‑induced pain was established by implanting SW 1990 cells into the pancreases of female BALB/c‑nu mice. The survival rate and body weight were measured following orthotropic transplantation...
August 4, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28791194/a-case-report-of-surgical-management-of-hemangiopericytoma-at-the-foramen-magnum
#12
Nobuhiko Arai, Satoshi Takahashi, Hatano Mami, Yukina Tokuda, Kazunari Yoshida
BACKGROUND: Hemangiopericytoma (HPC) is a highly vascularized mesenchymal tumor known for its high rates of recurrence and metastasis. The extent of tumor removal is known to be the most trustful prognostic factor. Skull base HPCs are challenging to treat because of the difficulty of the surgical approach and proximity to vital vascular and neuronal structures. We successfully treated a case of HPC at the ventral foramen magnum through surgical gross tumor removal via a far-lateral transcondylar approach...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28782583/age-related-remodeling-of-the-jak-stat-socs-signaling-pathway-and-associated-myocardial-changes-from-histological-to-molecular-level
#13
Basma Emad Aboulhoda
BACKGROUND: The cellular and molecular mechanisms implicated in age-associated changes in myocardial structure are of paramount importance since they cause profound alterations in the functional response and represent targets for alleviating age-related pathologies. One of these mechanisms is the JAK/STAT/SOCS signaling pathway. AIM OF THE STUDY: The present study is designed to elucidate age-dependent changes of the myocardium to provide morphological basis displaying the pathogenesis of myocardial hypertrophy, fibrosis and inflammation with aging...
August 4, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28780813/-delayed-effect-of-liver-injury-and-metabolism-of-dimethylformamide-after-high-exposures-in-rats
#14
Z J Wu, M Y Guan, M Zheng, M Zhang, W J Zhao, L J Shao, Y C Zhai, Y L Zhu, J Cheng
Objective: To investigate the delayed effect of liver injury and metabolism of dimethylformamide (DMF) after high exposures in rats. Methods: A total of 12 rats were randomly divided into four groups and 3 rats were in each group. Rats in 1d DMF+2 d delayed group were dosed for 1 day and rested for 2 days, and sacrificed at the 4th day. Rats in 3 d DMF group were dosed for 3 days and sacrificed at the 4th day. Rats in 3 d DMF+3 d delayed group were dosed for 3 days and rested for 3 days, and sacrificed at the 7th day...
June 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28780428/spontaneous-c-septicum-gas-gangrene-a-literature-review
#15
REVIEW
Ira Srivastava, Michael J Aldape, Amy E Bryant, Dennis L Stevens
As the infectious disease paradigm undergoes a subtle shift, unusual infections associated with malignancy and immunosuppression are being increasingly reported. Spontaneous or non-traumatic Clostridium septicum infection is one such unusual infection which has gained prominence. This article aims to understand the pathophysiology, clinical manifestations and current trends in diagnosing and treating this rare but deadly infection. To understand the multifactorial causation of this infection a review of published cases of spontaneous C...
August 2, 2017: Anaerobe
https://www.readbyqxmd.com/read/28772346/radiographic-computed-tomographic-gross-pathological-and-histological-findings-with-suspected-apical-infection-in-32-equine-maxillary-cheek-teeth-2012-2015
#16
T Liuti, S Smith, P M Dixon
BACKGROUND: Equine maxillary cheek teeth apical infections are a significant disorder because of frequent spread of infection to the supporting bones. The accuracy of computed tomographic imaging (CT) of this disorder has not been fully assessed. OBJECTIVES: To compare the radiographic and CT findings in horses diagnosed with maxillary cheek teeth apical infections with pathological findings in the extracted teeth to assess the accuracy of these imaging techniques...
August 3, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28752518/the-color-of-cancer-margin-guidance-for-oral-cancer-resection-using-elastic-scattering-spectroscopy
#17
Gregory A Grillone, Zimmern Wang, Gintas P Krisciunas, Angela C Tsai, Vishnu R Kannabiran, Robert W Pistey, Qing Zhao, Eladio Rodriguez-Diaz, Ousama M A'Amar, Irving J Bigio
OBJECTIVES/HYPOTHESIS: To evaluate the usefulness of elastic scattering spectroscopy (ESS) as a diagnostic adjunct to frozen section analysis in patients with diagnosed squamous cell carcinoma of the oral cavity. STUDY DESIGN: Prospective analytic study. METHODS: Subjects for this single institution, institutional review board-approved study were recruited from among patients undergoing surgical resection for squamous cell cancer of the oral cavity...
July 28, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28751057/the-role-of-surgical-management-in-primary-small-bowel-lymphoma-a-single-center-experience
#18
Y-W Hong, I-M Kuo, Y-Y Liu, T-S Yeh
INTRODUCTION: Information on primary small intestinal lymphoma is more limited than for gastric lymphoma because most of the previous studies did not focus on the former. Few prognostic indicators in primary intestinal lymphoma have been reliably established because of limited patient numbers and variations in criteria for patient selection. In this study, we retrospectively reviewed the clinical and pathological characteristics of small intestinal lymphoma cases from our hospital, to determine prognostic factors and to clarify the effect of surgical resection on prognosis...
July 18, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28750593/the-role-of-external-beam-radiation-therapy-in-well-differentiated-thyroid-cancer
#19
Sarah N Hamilton, Eric Tran, Eric Berthelet, John Wu
dglkf Introduction: This review article explores the use of external beam radiotherapy (EBRT) in well differentiated thyroid cancer. Areas covered: The published literature on EBRT for advanced pT4 disease and macroscopic unresectable disease to improve locoregional control is reviewed. EBRT techniques, volumes and doses are discussed in detail. The potential acute and late toxicities of EBRT are discussed in the context of the published literature. The use of EBRT for patients with metastatic disease is also described...
July 28, 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/28740926/intensity-modulated-radiation-therapy-for-squamous-cell-carcinoma-of-the-vulva-treatment-technique-and-outcomes
#20
Yuan James Rao, Anupama Chundury, Julie K Schwarz, Comron Hassanzadeh, Todd DeWees, Daniel Mullen, Matthew A Powell, David G Mutch, Perry W Grigsby
OBJECTIVE: The objective of this study was to present the treatment technique and evaluate clinical outcomes after intensity modulated radiation therapy (IMRT) for vulvar cancer. METHODS AND MATERIALS: This retrospective study included 39 patients with squamous cell carcinoma of the vulva treated with IMRT from 2005 to 2015. There were 21 patients treated with postoperative IMRT, 13 with definitive IMRT, and 5 with preoperative IMRT. Tumor staging was Federation of Gynecology and Obstetrics stage I in 6, stage II in 7, stage III in 19, and stage IV in 7 patients...
April 2017: Advances in Radiation Oncology
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