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pathology image analysis

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https://www.readbyqxmd.com/read/29684099/comparative-analysis-of-tissue-reconstruction-algorithms-for-3d-histology
#1
Kimmo Kartasalo, Leena Latonen, Jorma Vihinen, Tapio Visakorpi, Matti Nykter, Pekka Ruusuvuori
Motivation: Digital pathology enables new approaches that expand beyond storage, visualization or analysis of histological samples in digital format. One novel opportunity is 3D histology, where a three-dimensional reconstruction of the sample is formed computationally based on serial tissue sections. This allows examining tissue architecture in 3D, for example, for diagnostic purposes. Importantly, 3D histology enables joint mapping of cellular morphology with spatially resolved omics data in the true 3D context of the tissue at microscopic resolution...
April 19, 2018: Bioinformatics
https://www.readbyqxmd.com/read/29682479/submandibular-lipoblastoma-case-report-of-a-rare-tumor-in-childhood
#2
Olfa El Amine, Meyssa Belghith, Hasna Salhi, Aida Goucha, Amor Gamoudi
Lipoblastoma is a rare, benign tumor usually occurring in childhood. It is essentially localized in the extremities and trunk, with few cases reported in the neck. We report the case of a 2-year-old girl with a rapidly enlarging, painless neck mass. Magnetic resonance imaging (MRI) revealed a 3-cm mass in the right submandibular region. Review of literature, diagnostic methods, and genetics of lipomatous tumors are discussed. Complete surgical excision via a lateral cervical approach demonstrated a white soft tissue with an adherent ganglion...
April 2018: Avicenna Journal of Medicine
https://www.readbyqxmd.com/read/29682372/from-postural-orthostatic-tachycardia-syndrome-to-radiologically-isolated-syndrome
#3
Richa Tripathi, Evanthia Bernitsas
Background: Autonomic dysfunction is common in Multiple Sclerosis (MS) patients. Most spinal cord lesions entail some degree of autonomic nervous system dysfunction. MS patients may develop autonomic dysfunction later in their disease course. Methods: We report a patient with no prior history of MS presenting with orthostatic symptoms and diagnosed initially with postural orthostatic tachycardia syndrome (POTS). Four months later, she was diagnosed with radiologically isolated syndrome (RIS)...
2018: Case Reports in Neurological Medicine
https://www.readbyqxmd.com/read/29681904/brain-resident-microglia-and-blood-borne-macrophages-orchestrate-central-nervous-system-inflammation-in-neurodegenerative-disorders-and-brain-cancer
#4
REVIEW
Lisa Sevenich
Inflammation is a hallmark of different central nervous system (CNS) pathologies. It has been linked to neurodegenerative disorders as well as primary and metastatic brain tumors. Microglia, the brain-resident immune cells, are emerging as a central player in regulating key pathways in CNS inflammation. Recent insights into neuroinflammation indicate that blood-borne immune cells represent an additional critical cellular component in mediating CNS inflammation. The lack of experimental systems that allow for discrimination between brain-resident and recruited myeloid cells has previously halted functional analysis of microglia and their blood-borne counterparts in brain malignancies...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29681604/-comparison-of-time-intensity-curve-with-gadobenatedimeglumine-and-gadobutrol-on-multiphase-contrast-enhanced-breast-mri
#5
Yu Komura, Takuma Mogi, Fuminori Shimizu, Katsuhiro Yatabe, Junkou Nedate, Hidenori Kanazawa, Akira Kawai
The purpose of this study was to compare the time-intensity curve (TIC) on multiphase contrast-enhanced breast magnetic resonance imaging (MRI) between Gadobenatedimeglumine (Gd-DTPA) and Gadobutrol. We assessed the images of 53 cases obtained from MRI that had malignant findings by pathology from October 2015 to October 2016 in our institute. Gd-DTPA and Gadobutrol were administrated in 16 and 37 cases, respectively. The TIC of the lesion was classified according to the Kuhl's method (type I: persistent pattern, type II: plateau pattern and type III: washout pattern)...
2018: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/29681417/fulminant-primary-cardiac-lymphoma-with-sudden-cardiac-death-a-case-report-and-brief-review
#6
Jen-Fang Cheng, Sze-Hwei Lee, Ron-Bin Hsu, Shan-Chi Yu, Chia-Tung Shun, Pang-Shuo Huang, Ying-Hsien Chen, Chii-Ming Lee
Primary cardiac lymphoma (PCL) is very rare, with the variable clinical manifestations potentially leading to a delayed diagnosis. PCL is usually detected incidentally through image studies, whereas the diagnosis can be confirmed via analysis of pericardial effusion, endomyocardial biopsy tissue, or surgical specimens. Although no standard therapy has been established for PCL, without treatment, the prognosis is grave, with the estimated overall survival being approximately 1 year. We report a difficult diagnosis and complicated case of fulminant PCL, which is the first comprehensively reported case of PCL with secondary hemophagocytosis...
April 19, 2018: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/29679528/intravoxel-incoherent-motion-diffusion-weighted-imaging-of-primary-rectal-carcinoma-correlation-with-histopathology
#7
Baolan Lu, Xinyue Yang, Xiaojuan Xiao, Yan Chen, Xu Yan, Shenping Yu
BACKGROUND Comprehensive and precise assessment of rectal carcinoma is crucial before surgery to plan an individual treatment strategy. New functional techniques, such as intravoxel incoherent motion (IVIM), have emerged and could lead to more detailed information. The aim of this study was to evaluate the difference between the rectal tumor parenchyma and normal wall by IVIM and to explore the correlations of IVIM parameters and histopathology. MATERIAL AND METHODS We prospectively enrolled 128 patients with pathologically proven rectal non-mucinous carcinoma with differentiation degree and 16 patients with mucinous carcinoma...
April 21, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29678274/preoperative-mri-evaluation-of-lesion-nipple-distance-in-breast-cancer-patients-thresholds-for-predicting-occult-nipple-areola-complex-involvement
#8
G Mariscotti, M Durando, N Houssami, C M Berzovini, F Esposito, M Fasciano, P P Campanino, D Bosco, R Bussone, A Ala, I Castellano, A Sapino, L Bergamasco, P Fonio, G Gandini
AIM: To identify clinically occult nipple-areola complex (NAC) involvement using preoperative magnetic resonance imaging (MRI), to inform selection of patients eligible for nipple-sparing mastectomy (NSM) or skin-sparing mastectomy (SSM). MATERIAL AND METHODS: This was a retrospective study of 195 patients, who had preoperative breast MRI (February 2011 to January 2017) before undergoing surgical treatments (NSM or SSM) for newly diagnosed breast cancer. Tumour features at MRI (mass or non-mass lesion, diameter, lesion-NAC distance [LND]) and pathology (lesion diameter, histopathological type, receptor status) were recorded, as well as the type of surgery (NSM/SSM) and presence (NAC+) or absence (NAC-) of tumour at intraoperative evaluation of retroareolar tissue...
April 17, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29677368/in-vivo-characterization-of-spontaneous-retinal-neovascularization-in-the-mouse-eye-by-multifunctional-optical-coherence-tomography
#9
Marco Augustin, Matthias Wechdorn, Ulrike Pfeiffenberger, Tanja Himmel, Stanislava Fialová, René M Werkmeister, Christoph K Hitzenberger, Martin Glösmann, Bernhard Baumann
Purpose: To investigate the early development of spontaneous retinal neovascularization in the murine retina by a multifunctional optical coherence tomography approach. To characterize involved tissue changes in vivo and describe structural and functional changes over time. Methods: A multifunctional optical coherence tomography (OCT) system providing 3-fold contrast comprising reflectivity, polarization sensitivity, and OCT angiography (OCTA) was utilized to image very-low-density lipoprotein receptor (VLDLR) knockout mice...
April 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29676939/diffusion-kurtosis-imaging-in-the-differential-diagnosis-of-parotid-gland-disease-and-parotid-adenolymphoma-preliminary-results
#10
Shun Yu, Zhongshuai Zhang, Bao Qiang, S U Jiawei, Mengxiao Liu, Qinglei Shi, Wenchao Cai
PURPOSE: To study the value of diffusion kurtosis imaging (DKI) in diagnosis of parotid gland disease (PGD) with different pathological patterns and parotid adenolymphoma (PAL). METHODS: Fifty-seven patients with different kinds of PGD were enrolled and underwent DKI and conventional diffusion-weighted imaging (DWI). All patients were categorized into different groups according to their pathological patterns. The result of calculating the value of DKI-derived parameters (Kmean, Krad, Kax, Dmean, Drad, Dax, and FA) and apparent diffusion coefficient (ADC) of DWI were used to study their diagnostic accuracy in PGD with different pathological patterns...
April 20, 2018: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29673921/bicyclist-s-vulva-diagnostic-and-therapeutic-aspects
#11
A Grouin, S Rouquette, M Saïdani, S Henno, V Lavoué, J Levêque
The authors report a case of a rare vulvar condition in a young cyclist, known as bicyclist's vulva. The diagnosis was based on the clinical context (intensive cycling training with repeated saddle sores, responsible for painless unilateral swelling of the labium majus to a significant size and functional discomfort). Imaging examinations were used to characterise the lesion and its relationship with the pelvic organs. The lesion was composed of connective tissue, poorly demarcated and heavily collagenised without necrotic or haemorrhagic areas...
April 16, 2018: Journal of gynecology obstetrics and human reproduction
https://www.readbyqxmd.com/read/29673894/anisotropy-of-anomalous-diffusion-improves-the-accuracy-of-differentiating-low-and-high-grade-cerebral-gliomas
#12
Boyan Xu, Lu Su, Zhenxiong Wang, Yang Fan, Gaolang Gong, Wenzhen Zhu, Peiyi Gao, Jia-Hong Gao
BACKGROUND: Anomalous diffusion model has been introduced and shown to be beneficial in clinical applications. However, only the directionally averaged values of anomalous diffusion parameters were investigated, and the anisotropy of anomalous diffusion remains unexplored. The aim of this study was to demonstrate the feasibility of using anisotropy of anomalous diffusion for differentiating low- and high-grade cerebral gliomas. METHODS: Diffusion MRI images were acquired from brain tumor patients and analyzed using the fractional motion (FM) model...
April 16, 2018: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29673240/the-major-role-of-nf-kb-in-the-depth-of-invasion-on-acral-melanoma-by-decreasing-cd8-t-cells
#13
Hermin Aminah Usman, Bethy S Hernowo, Maringan Diapari Lumban Tobing, Reti Hindritiani
Background: The tumor microenvironment including immune surveillance affects malignant melanoma (MM) behavior. Nuclear factor кB (NF-κB) stimulates the transcription of various genes in the nucleus and plays a role in the inflammatory process and in tumorigenesis. CD8+ T cells have cytotoxic properties important in the elimination of tumors. However, inhibitory receptors on the cell surface will bind to programmed death-ligand 1 (PD-L1), causing CD8+ T cells to lose their ability to initiate an immune response...
April 20, 2018: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/29673113/evaluation-of-photoshop-based-image-analysis-in-cytologic-diagnosis-of-pleural-fluid-in-comparison-with-conventional-modalities
#14
Amir Hossein Jafarian, Aida Tasbandi, Nema Mohamadian Roshan
BACKGROUND: The aim of this study is to investigate and compare the results of digital image analysis in pleural effusion cytology samples with conventional modalities. MATERIALS AND METHODS: In this cross-sectional study, 53 pleural fluid cytology smears from Qaem hospital pathology department, located in Mashhad, Iran were investigated. Prior to digital analysis, all specimens were evaluated by two pathologists and categorized into three groups as: benign, suspicious, and malignant...
April 19, 2018: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29672876/regional-brain-volume-changes-in-alcohol-dependent-individuals-during-short-term-and-long-term-abstinence
#15
Xiaowei Zou, Timothy C Durazzo, Dieter J Meyerhoff
BACKGROUND: Widespread brain atrophy in alcohol-dependent individuals (ALC) has been consistently documented in pathological and magnetic resonance imaging (MRI) studies. Longitudinal MRI studies have shown that the regional brain volume losses in ALC are partially reversible during abstinence from alcohol. The goal of this study was to determine volume reductions in cortical and subcortical regions functionally important to substance use behavior and their changes during short-term (1 week to 1 month) and long-term abstinence (1 month to 7 months) from alcohol...
April 19, 2018: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/29672733/outcomes-of-active-surveillance-of-clinical-stage-i-non-seminomatous-germ-cell-tumors-sub-analysis-of-the-multi-institutional-nationwide-case-series-of-the-japanese-urological-association
#16
Yasuo Shinoda, Yoshiyuki Matsui, Hiroyuki Fujimoto
Objective: To evaluate the survival rate and risk factors of distant metastasis in stage I non-seminomatous germ cell tumor (NSGCT) cases without adjuvant treatments. Methods: A national testicular cancer survey of cases newly diagnosed in 2005 and 2008 was conducted by the Japanese Urological Association in 2011. In 159 stage I NSGCT cases, 132 were followed by active surveillance after high orchiectomy. Their recurrence-free survival rate (RFS) was compared with 27 cases that received adjuvant treatments, and clinical and pathological parameters were explored to identify significant risk factors of recurrence...
April 17, 2018: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29672624/anatomical-distribution-of-cerebral-microbleeds-and-intracerebral-hemorrhage-in-vertebrobasilar-dolichoectasia
#17
Alex Förster, Ralf Wenz, Máté Elöd Maros, Johannes Böhme, Mansour Al-Zghloul, Angelika Alonso, Christoph Groden, Holger Wenz
OBJECTIVES: Vertebrobasilar dolichoectasia (VBD) is a dilatative arteriopathy associated with intracerebral hemorrhage. In the present study, we sought to evaluate the frequency and anatomical distribution of cerebral microbleeds (cMBs) and intracerebral hemorrhage (ICH) in VBD. METHODS: From a MRI database 94 VBD patients were identified and analyzed with special emphasis on cMBs and ICH on T2*-weighted gradient echo images (GRE) in relation to the established diagnostic MRI criteria of VBD (diameter, height, and lateral position)...
2018: PloS One
https://www.readbyqxmd.com/read/29672550/tumor-budding-is-an-independent-prognostic-marker-in-early-stage-oral-squamous-cell-carcinoma-with-special-reference-to-the-mode-of-invasion-and-worst-pattern-of-invasion
#18
Shota Shimizu, Akihiro Miyazaki, Tomoko Sonoda, Kazushige Koike, Kazuhiro Ogi, Jun-Ichi Kobayashi, Takeshi Kaneko, Tomohiro Igarashi, Megumi Ueda, Hironari Dehari, Akira Miyakawa, Tadashi Hasegawa, Hiroyoshi Hiratsuka
Pathologically proven regional lymph node metastasis affects the prognosis in early stage oral cancer. Therefore we investigated invasive tumor patterns predicting nodal involvement and survival in patients with clinically node-negative T1 and T2 oral squamous cell carcinoma (cT1,2N0M0 OSCC). Ninety-one cases of cT1,2N0M0 OSCC treated with transoral resection of the primary tumor were assessed based on 3 types of invasive tumor patterns on histopathologic and pancytokeratin-stained immunohistological sections: the mode of invasion, worst pattern of invasion (WPOI), and tumor budding...
2018: PloS One
https://www.readbyqxmd.com/read/29671958/synoptic-reporting-of-pituitary-magnetic-resonance-imaging
#19
Rana S Dhillon, James A King, Tony Goldschlager, Yi Yuen Wang
BACKGROUND: Pituitary adenomas are common, often asymptomatic tumours that are diagnosed incidentally by magnetic resonance imaging (MRI) of the brain. There is considerable variation in the reporting of pituitary MRI, in part because there is no consensus as to what information should be included in such reports. Synoptic reporting consists of using structured checklists to standardize communication. It has been adopted in the surgical pathology literature and more recently in the breast imaging field...
April 19, 2018: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/29670888/computational-fluid-dynamic-analysis-of-the-left-atrial-appendage-to-predict-thrombosis-risk
#20
Giorgia Maria Bosi, Andrew Cook, Rajan Rai, Leon J Menezes, Silvia Schievano, Ryo Torii, Gaetano Burriesci
During Atrial Fibrillation (AF) more than 90% of the left atrial thrombi responsible for thromboembolic events originate in the left atrial appendage (LAA), a complex small sac protruding from the left atrium (LA). Current available treatments to prevent thromboembolic events are oral anticoagulation, surgical LAA exclusion, or percutaneous LAA occlusion. However, the mechanism behind thrombus formation in the LAA is poorly understood. The aim of this work is to analyse the hemodynamic behaviour in four typical LAA morphologies - "Chicken wing", "Cactus", "Windsock" and "Cauliflower" - to identify potential relationships between the different shapes and the risk of thrombotic events...
2018: Frontiers in Cardiovascular Medicine
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