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Pre-invasive lesions

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https://www.readbyqxmd.com/read/29332233/pilot-study-of-serial-flt-and-fdg-pet-ct-imaging-to-monitor-response-to-neoadjuvant-chemoradiotherapy-of-esophageal-adenocarcinoma-correlation-with-histopathologic-response
#1
Victor H Gerbaudo, Joseph H Killoran, Chun K Kim, Jason L Hornick, Jonathan A Nowak, Peter C Enzinger, Harvey J Mamon
OBJECTIVE: The aim of this prospective pilot study was to investigate the potential of serial FLT-PET/CT compared to FDG-PET/CT to provide an early indication of esophageal cancer response to concurrent neoadjuvant chemoradiation therapy. METHODS: Five patients with biopsy-proven esophageal adenocarcinomas underwent neoadjuvant chemoradiation (Tx) prior to minimally invasive esophagectomy. The presence of residual tumor was classified histologically using the Mandard et al...
January 13, 2018: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/29331035/noninvasive-optical-spectroscopy-for-identification-of-non-melanoma-skin-cancer-pilot-study
#2
David J Carpenter, Mirabelle B Sajisevi, Nikita Chapurin, Clifford Scott Brown, Tracy Cheng, Gregory M Palmer, Daniel S Stevenson, Caroline L Rao, Russell P Hall, Charles R Woodard
OBJECTIVE: Optical spectroscopy offers a noninvasive alternative to biopsy as a first-line screening tool for suspicious skin lesions. This study sought to define several optical parameters across malignant and benign tissue types. STUDY DESIGN: Prospective pilot trial utilizing the Zenalux IM1 optical spectroscopy device from April 2016 to February 2017. For each skin lesion, provider pre-biopsy probability of malignancy was compared to histolopathologic diagnosis...
January 13, 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29329734/the-morphological-changes-of-bronchovascular-bundles-within-subsolid-nodules-on-hrct-correlate-with-the-new-iaslc-classification-of-adenocarcinoma
#3
L Liu, N Wu, W Tang, F Xu, L-N Zhou, P-Q Ma, L Li, X Liang
AIM: To observe the morphological changes of bronchovascular bundles within subsolid nodules on high-resolution (HR) computed tomography (CT) and analyse the correlation with the new adenocarcinoma classification. MATERIALS AND METHODS: Two hundred and sixteen lesions (absent consolidation on mediastinal window) were reviewed retrospectively. CT features including dimensions, contour, morphological changes of the blood vessels, and bronchi/bronchioles, vacuole signs, and their correlation with histopathology were evaluated...
January 9, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29329732/changes-in-quantitative-ct-image-features-of-ground-glass-nodules-in-differentiating-invasive-pulmonary-adenocarcinoma-from-benign-and-in-situ-lesions-histopathological-comparisons
#4
Y P Zhang, M A Heuvelmans, H Zhang, M Oudkerk, G X Zhang, X Q Xie
AIM: To evaluate progressive changes in quantitative CT features of the non-solid component of ground-glass nodules (GGNs) from baseline to follow-up to differentiate invasive (minimally invasive adenocarcinoma [MIA] and invasive adenocarcinoma [IA]) GGNs from benign or pre-invasive (adenocarcinoma in situ [AIS]) lesions. MATERIALS AND METHODS: Patients with a GGN detected at baseline and follow-up computed tomography (CT), examined by tissue sampling were included in the study...
January 9, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29297491/high-grade-prostatic-intraepithelial-neoplasia-pin-like-carcinoma-ductal-carcinoma-and-intraductal-carcinoma-of-the-prostate
#5
Ming Zhou
Many prostate lesions have 'large gland' morphology with gland size similar to or larger than benign glands, complex glandular architecture including papillary, cribriform, and solid, and significant cytological atypia in glandular epithelium with nucleomegaly, prominent nucleoli, or anisonucleosis. The most common and clinically important lesions with 'large gland' morphology include high-grade prostatic intraepithelial neoplasia (HGPIN), PIN-like carcinoma, ductal adenocarcinoma, and intraductal carcinoma...
January 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29290911/gastric-endoscopic-submucosal-dissection-as-a-treatment-for-early-neoplasia-and-for-accurate-staging-of-early-cancers-in-a-united-kingdom-caucasian-population
#6
Aisha Sooltangos, Matthew Davenport, Stephen McGrath, Jonathan Vickers, Siba Senapati, Kurshid Akhtar, Regi George, Yeng Ang
AIM: To investigate the efficacy of endoscopic submucosal dissection (ESD) at diagnosing and treating superficial neoplastic lesions of the stomach in a United Kingdom Caucasian population. METHODS: Data of patients treated with or considered for ESD at a tertiary referral center in the United Kingdom were retrieved for a period of 2 years (May 2015 to June 2017) from the electronic patient records of the hospital. Only Caucasian patients were included. Primary outcomes were curative resection (CR) and were defined as ESD resections with clear horizontal and vertical margin and an absence of lympho-vascular invasion, poor differentiation and submucosal involvement on histological evaluation of the resected specimen...
December 16, 2017: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/29259267/dysregulation-of-mir-196b-in-head-and-neck-cancers-leads-to-pleiotropic-effects-in-the-tumor-cells-and-surrounding-stromal-fibroblasts
#7
Saúl Álvarez-Teijeiro, Sofía T Menéndez, M Ángeles Villaronga, Juan P Rodrigo, Lorea Manterola, Lucas de Villalaín, Juan C de Vicente, Laura Alonso-Durán, M Pilar Fernández, Charles H Lawrie, Juana M García-Pedrero
The miR-196 family members have been found dysregulated in different cancers. Therefore, they have been proposed as promising biomarkers and therapeutic targets. This study is the first to investigate the role of miR-196b in the development and progression of head and neck squamous cell carcinomas (HNSCC), and also the impact on the surrounding tumor microenvironment. Increased miR-196b levels were detected in 95% of primary tumors and precancerous lesions, although no significant differences were observed between non-progressing versus progressing dysplasias...
December 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29239031/molecular-alterations-of-neuroendocrine-tumours-of-the-lung
#8
REVIEW
Giulio Rossi, Luca Bertero, Caterina Marchiò, Mauro Papotti
Neuroendocrine tumours of the lung comprise low [typical carcinoid (TC)], intermediate [atypical carcinoid (AC)] and high-grade [small-cell lung cancer (SCLC) and large-cell neuroendocrine carcinoma (LCNEC)] malignancies, while a pre-invasive lesion [diffuse idiopathic pulmonary neuroendocrine cell hyperplasia (DIPNECH)] may generate a subset of peripheral carcinoid tumours. These neoplasms are differentiated conventionally based on mitotic rate, presence of necrosis and cytological details, according to the 2015 World Health Organisation (WHO) classification...
January 2018: Histopathology
https://www.readbyqxmd.com/read/29228383/oral-fungal-bacterial-biofilm-models-in-vitro-a-review
#9
Marlene Chevalier, Stephane Ranque, Isabelle Prêcheur
Inclusion of fungi as commensals in oral biofilm is an important innovation in oral biology, and this work aimed to review the literature on the available biofilm and related disease in vitro models. Actually, thousands of bacterial and around one hundred of fungal phylotypes can colonize the oral cavity. Taxonomic profiling combined with functional expression analysis has revealed that Candida albicans, Streptococcus mutans and prominent periodontopathogens are not always present or numerically important in candidiasis, caries, or periodontitis lesions...
December 8, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/29224085/aphasia-and-cognitive-impairment-decrease-the-reliability-of-rntms-language-mapping
#10
Vera Schwarzer, Ina Bährend, Tizian Rosenstock, Felix R Dreyer, Peter Vajkoczy, Thomas Picht
BACKGROUND: Navigated transcranial magnetic stimulation (nTMS) is a non-invasive mapping tool to locate functional areas of the brain. While gaining importance in the preoperative planning process in motor eloquent regions, its usefulness for reliably identifying language areas is still being discussed. The aim of this study was to identify biometric factors which might influence and therefore bias the results of repetitive nTMS (rnTMS) over cortex areas relevant for language. METHOD: We included data of 101 patients with language eloquent brain lesions who underwent preoperative rnTMS examination bihemispherically...
December 9, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29218489/contrast-enhanced-ultrasound-of-the-kidney-a-single-institution-experience
#11
Sheng F Oon, Robert W Foley, Deirdre Quinn, David M Quinlan, Robert G Gibney
BACKGROUND: Focal renal masses are typically evaluated by means of triphasic contrast-enhanced CT or MRI scan but use of iodinated contrast or gadolinium is unsuitable for some patients. Contrast-enhanced ultrasound (CEUS) is an imaging alternative in this scenario but has limited availability in Ireland. AIM: The aim of the study was to retrospectively evaluate experience with selective use of CEUS for non-invasive characterization of focal renal masses in a tertiary referral institution in Ireland, with a particular focus on cystic renal lesions and the influence of CEUS on final Bosniak classification and treatment outcomes...
December 7, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/29213299/cervical-cancer-patients-presentation-and-survival-in-the-only-oncology-referral-hospital-ethiopia-a-retrospective-cohort-study
#12
Muluken Gizaw, Adamu Addissie, Sefonias Getachew, Wondimu Ayele, Israel Mitiku, Ulrike Moelle, Tigist Yusuf, Mathias Begoihn, Mathewos Assefa, Ahmedin Jemal, Eva Johanna Kantelhardt
Background: Women infected with Human Immune Deficiency Virus (HIV) are assumed to be at higher risk of developing Cervical Cancer (CC). This is due to a rapid progression of pre-invasive to invasive lesions. However, evidences suggest, due to the availability of antiretroviral therapy (ART) and care services; an improved survival and treatment outcome of CC patients (CCPs) with HIV infection is expected. Objective: The aim of this study is to examine the clinical characteristics and survival of of CCPs registered at the radiotherapy center of Tikur Anbessa Specialized Hospital (TASH), Addis Ababa University, Ethiopia...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/29209586/diffusion-tensor-imaging-and-tractography-application-in-pre-operative-planning-of-intra-axial-brain-lesions
#13
Neetu Soni, Anant Mehrotra, Sanjay Behari, Sunil Kumar, Nishant Gupta
Gliomas are the most common brain tumors that diffusely infiltrate the surrounding white matter (WM) tracts. Conventional MRI is commonly used for tumor localization and characterization. However, this does not give precise information about the WM infiltration surrounding the tumor. Diffusion-tensor imaging (DTI) is a non-invasive magnetic resonance (MR) technique that measures WM tissue integrity and tractography (fiber tracking) used to investigate the preferential directionality of diffusion. DTI allows visualization of WM tracts in the immediate vicinity of brain tumors that permit maximum tumor resection while also preserving the eloquent brain areas...
October 3, 2017: Curēus
https://www.readbyqxmd.com/read/29207201/hypoxia-modulates-the-stem-cell-population-and-induces-emt-in-the-mcf-10a-breast-epithelial-cell-line
#14
Carl S Daly, Arwa Flemban, Mai Shafei, Myra E Conway, David Qualtrough, Sarah J Dean
A common feature among pre-malignant lesions is the induction of hypoxia through increased cell propagation and reduced access to blood flow. Hypoxia in breast cancer has been associated with poor patient prognosis, resistance to chemotherapy and increased metastasis. Although hypoxia has been correlated with factors associated with the latter stages of cancer progression, it is not well documented how hypoxia influences cells in the earliest stages of transformation. Using the immortalized MCF-10A breast epithelial cell line, we used hypoxic culture conditions to mimic reduced O2 levels found within early pre-malignant lesions and assessed various cellular parameters...
December 1, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29201605/culture-free-detection-of-crop-pathogens-at-the-single-cell-level-by-micro-raman-spectroscopy
#15
Qinhua Gan, Xuetao Wang, Yun Wang, Zhenyu Xie, Yang Tian, Yandu Lu
The rapid and sensitive identification of invasive plant pathogens has important applications in biotechnology, plant quarantine, and food security. Current methods are far too time-consuming and need a pre-enrichment period ranging from hours to days. Here, a micro-Raman spectroscopy-based bioassay for culture-free pathogen quarantine inspection at the single cell level within 40 min is presented. The application of this approach can readily and specifically detect plant pathogens Burkholderia gladioli pv...
November 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/29196091/minimally-invasive-percutaneous-transluminal-renal-artery-stenting
#16
Ken Kongoji, Takanobu Mitarai, Mizuho Kasahara, Hiroshi Yamazaki, Yuki Ishibashi, Kohei Koyama, Kihei Yoneyama, Yasuhiro Tanabe, Yoshihiro J Akashi, Hideaki Yoshino
BACKGROUND: Minimally invasive percutaneous transluminal renal artery stenting (MIPTRS) is a method that prevents complications to the greatest extent possible. The present study aimed to investigate the safety and efficacy of MIPTRS performed in cases of renal artery stenosis with an estimated glomerular filtration rate (eGFR)≤45mL/min. METHODS: Cases of patients who underwent MIPTRS at our hospital between December 2010 and June 2015 in whom eGFR was ≤45mL/min were retrospectively analysed...
November 21, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29181158/serum-pepsinogen-and-gastrin-17-as-potential-biomarkers-for-pre-malignant-lesions-in-the-gastric-corpus
#17
Tan Han Loong, Ngiu Chai Soon, Nik Ritza Kosai Nik Mahmud, Jeevinesh Naidu, Rafiz Abdul Rani, Nazefah Abdul Hamid, Marjanu Hikmah Elias, Isa Mohamed Rose, Azmi Tamil, Norfilza M Mokhtar, Raja Affendi Raja Ali
There is a lack of non-invasive screening modalities to diagnose chronic atrophic gastritis (CAG) and intestinal metaplasia (IM). Thus, the aim of the present study was to determine the sensitivity and specificity of serum pepsinogen I (PGI), PGI:II, the PGI:II ratio and gastrin-17 (G-17) in diagnosing CAG and IM, and the correlations between these serum biomarkers and pre-malignant gastric lesions. A cross-sectional study of 72 patients (82% of the calculated sample size) who underwent oesophageal-gastro-duodenoscopy for dyspepsia was performed in the present study...
November 2017: Biomedical Reports
https://www.readbyqxmd.com/read/29165886/pre-operative-features-of-non-invasive-follicular-thyroid-neoplasms-with-papillary-like-nuclear-features-an-analysis-of-their-cytological-gene-expression-classifier-and-sonographic-findings
#18
S J Song, V A LiVolsi, K Montone, Z Baloch
OBJECTIVE: To investigate the corresponding cytological diagnoses, Gene Expression Classifier (GEC) results and ultrasound features of thyroid nodules diagnosed as non-invasive follicular thyroid neoplasms with papillary-like nuclear features (NIFTP), as well as any coexisting pathology. METHODS: We performed a retrospective review of thyroid nodules histologically diagnosed as NIFTP at our institution between 1st April 2016 and 1st April 2017. The following data points were collected: demographics, nodule size, ultrasound features, cytological diagnosis, GEC results, origin of sample (in-house vs outside hospital) and any additional pathology identified in the resection specimen...
December 2017: Cytopathology: Official Journal of the British Society for Clinical Cytology
https://www.readbyqxmd.com/read/29150624/semiquantative-visual-assessment-of-sub-solid-pulmonary-nodules-%C3%A2-3%C3%A2-cm-in-differentiation-of-lung-adenocarcinoma-spectrum
#19
Fu-Zong Wu, Po-An Chen, Carol C Wu, Pei-Lun Kuo, Shu-Ping Tsao, Chu-Chun Chien, En-Kuei Tang, Ming-Ting Wu
We aimed to analyze CT features of persistent subsolid nodules (SSN) ≦3 cm diagnosed pathologically as adenocarcinoma spectrum to investigate whether parameters enable distinction between invasive pulmonary adenocarcinomas (IPAs) and pre-invasive lesions. A total of 129 patients with 141 SSNs confirmed with surgically pathologic proof were retrospectively reviewed. Of 141 SSNs, there were 57 pure ground-glass nodules (GGNs), 22 heterogeneous GGNs, and 62 part-solid nodules. SSN subclassification showed a significant linear trend with invasive degree of the adenocarcinoma spectrum (pure GGNs 7%; heterogeneous GGNs 36...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29148540/single-cell-heterogeneity-in-ductal-carcinoma-in-situ-of-breast
#20
Michael J Gerdes, Yesim Gökmen-Polar, Yunxia Sui, Alberto Santamaria Pang, Nicole LaPlante, Adrian L Harris, Puay-Hoon Tan, Fiona Ginty, Sunil S Badve
Heterogeneous patterns of mutations and RNA expression have been well documented in invasive cancers. However, technological challenges have limited the ability to study heterogeneity of protein expression. This is particularly true for pre-invasive lesions such as ductal carcinoma in situ of the breast. Cell-level heterogeneity in ductal carcinoma in situ was analyzed in a single 5 μm tissue section using a multiplexed immunofluorescence analysis of 11 disease-related markers (EGFR, HER2, HER4, S6, pmTOR, CD44v6, SLC7A5 and CD10, CD4, CD8 and CD20, plus pan-cytokeratin, pan-cadherin, DAPI, and Na+K+ATPase for cell segmentation)...
November 17, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
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