keyword
MENU ▼
Read by QxMD icon Read
search

Fine needle

keyword
https://www.readbyqxmd.com/read/29773387/levan-based-fibrous-scaffolds-electrospun-via-co-axial-and-single-needle-techniques-for-tissue-engineering-applications
#1
Gülben Avsar, Deniz Agirbasli, Mehmet Ali Agirbasli, Oguzhan Gunduz, Ebru Toksoy Oner
This represents the first systematic study where levan polysaccharide was used to fabricate fibrous matrices by co-axial and single-needle electrospinning techniques. For this, hydrolyzed (hHL) and sulfated hydrolyzed (ShHL) Halomonas levan were chemically synthesized and used together with polycaprolactone (PCL) and polyethyleneoxide (PEO) for the spinning process. In co-axially spun matrices, ultimate tensile strength (UTS) were found to increase with increasing ShHL concentration and elongation at break of PCL + ShHL matrices increased up to ten-fold when compared to PCL matrices...
August 1, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29771537/alginate-mediated-mineralization-for-ultra-fine-hydroxyapatite-hybrid-nanoparticles
#2
Xiaoxiang Ren, Zhe Sun, Xiaomin Ma, Yanming Wang, Xinxing Cui, Zeng Yi, Xiaoyu Sun, Bo Guo, Xudong Li
The good bioactivity of hydroxyapatite (HA) makes it become a popular biomaterial, so the synthesis of HA has attracted much attention. However, a simple method to prepare well-dispersive and ultra-fine HA nanoparticles (NPs) still need to be explored. Here, needle-like hybrid HA NPs were synthesized in the presence of alginate (ALG) and the mechanism of ALG regulation on forming HA/ALG hybrid NPs was investigated. The size and crystallinity of HA/ALG NPs could be controlled simply by varying the amount of ALG...
May 17, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29770781/eus-guided-tissue-sampling-with-a-20-gauge-core-biopsy-needle-for-the-characterization-of-gastrointestinal-subepithelial-lesions-a-multicenter-study
#3
Filippo Antonini, Gabriele Delconte, Lorenzo Fuccio, Germana De Nucci, Carlo Fabbri, Elia Armellini, Leonardo Frazzoni, Adele Fornelli, Andrea Magarotto, Enzo Mandelli, Pietro Occhipinti, Enzo Masci, Gianpiero Manes, Giampiero Macarri
Background and Objective: A new 20-gauge (G) biopsy needle with a core-trap technology has been developed with a large core size and enhanced flexibility. The aim of this multicenter study was to determine the feasibility, efficacy, and safety of EUS-guided fine-needle biopsy (EUS-FNB) with the new 20G needle in diagnosing subepithelial lesions (SELs). Materials and Methods: Retrospectively collected data from consecutive patients with SELs undergoing EUS-FNB with the 20G needle at five centers were analyzed...
May 17, 2018: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/29770313/management-of-the-axilla-in-metaplastic-breast-carcinoma
#4
Brittany L Murphy, Robert T Fazzio, Tanya L Hoskin, Katrina N Glazebrook, Michael G Keeney, Elizabeth B Habermann, Tina J Hieken
Background: Metaplastic breast cancer (MBC), characterized by admixed epithelial, squamous or mesenchymal elements, constitutes <1% of breast cancers and has a poor prognosis but a paradoxically low reported rate of axillary lymph node (LN) involvement. Due to its rarity, data on appropriate axillary management is lacking, prompting this investigation of LN status and outcomes. Methods: We identified 41 MBC patients treated at our institution 2001-2011 who were followed for a median of 66 months...
April 2018: Gland Surgery
https://www.readbyqxmd.com/read/29768677/thyroid-fine-needle-aspiration-cytology-causes-of-false-positive-results
#5
REVIEW
Daniela C Malheiros, Sule Canberk, David N Poller, Fernando Schmitt
In this paper, we aim to focus on false positive results in the evaluation of thyroid aspirations, covering cystic, inflammatory, follicular and oncocytic lesions, papillary carcinoma, and medullary carcinoma of thyroid. The recently described entity, "noninvasive follicular thyroid neoplasm with papillary-like nuclear features" (NIFTP), is also discussed detailing the impact of its introduction on the sensitivity and specificity of thyroid FNA, as well as the use of molecular tests for diagnostics...
May 16, 2018: Cytopathology: Official Journal of the British Society for Clinical Cytology
https://www.readbyqxmd.com/read/29768518/endobronchial-ultrasound-guided-transbronchial-needle-aspiration-ebus-tbna-in-diagnosis-of-mediastinal-lesions
#6
Ricardo Sales Dos Santos, Marcia Jacomelli, Juliana Pereira Franceschini, Iunis Suzuki, Altair da Silva Costa, Christina Shiang, Addy Lidvina Mejia Palomino
OBJECTIVE: To describe the results of endobronchial ultrasound-guided transbronchial needle aspiration in making diagnosis of mediastinal injuries associated to different causes. METHODS: A retrospective cross-sectional study of patients submitted to Endobronchial ultrasound-guided transbronchial needle aspiration at a private organization, between June 2013 and October 2016. All cases referred for collection of lymph nodes or peritracheal/peribronchial masses by endobronchial ultrasound-guided transbronchial needle aspiration, and evaluated through tomography or PET-CT were included...
May 14, 2018: Einstein
https://www.readbyqxmd.com/read/29765953/response-to-comparison-of-gene-expression-profiling-and-chromosome-3-analysis-by-fluorescent-in-situ-hybridization-and-multiplex-ligation-probe-amplification-in-fine-needle-aspiration-biopsy-specimens-of-uveal-melanoma
#7
https://www.readbyqxmd.com/read/29765951/advanced-midzonal-iris-pigment-epithelial-cyst-managed-by-aspiration-deflation
#8
Jerry A Shields, Samuel J Fallon, Charlotte Nelle Shields, Sara E Lally, Carol L Shields
Background: There are several cysts that can occur in the iris. The midzonal (retroiridic) iris pigment epithelial (IPE) cyst is important because it can simulate melanoma of the ciliary body. However, it is frequently asymptomatic and requires no treatment. Methods: A 37-year-old asymptomatic woman with visual acuity of 20/20 in each eye was found to have an elevated mass behind the left iris, presumed to be melanoma, and was referred for management. On our examination, there was a typical midzonal IPE cyst in the left eye (OS), requiring observation without intervention...
April 2018: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/29764509/ultrasound-guided-fine-needle-aspiration-of-retropharyngeal-lymph-nodes-after-radiotherapy-for-nasopharyngeal-carcinoma-a-novel-technique-for-accurate-diagnosis
#9
Long-Jun He, Chuanbo Xie, Yin Li, Lin-Na Luo, Ke Pan, Xiao-Yan Gao, Li-Zhi Liu, Jian-Ming Gao, Guang-Yu Luo, Hong-Bo Shan, Ming-Yuan Chen, Chong Zhao, Wei-Jun Fan, Ping Yang, Guo-Liang Xu, Jian-Jun Li
BACKGROUND: Enlarged retropharyngeal lymph nodes (RLNs) are very common in patients with nasopharyngeal carcinoma (NPC) undergoing radiotherapy. The most suitable treatment option for enlarged RLNs depends on the pathological results. However, RLN sampling is difficult and imminent in the clinic setting. We recently developed a novel minimally invasive technique termed endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) for sampling RLN tissues sufficient for pathological or cytological diagnosis...
May 9, 2018: Cancer communications
https://www.readbyqxmd.com/read/29764474/acute-blindness-as-a-presenting-sign-of-childhood-endemic-burkitt-s-lymphoma-in-cameroon-a-case-report
#10
Brice N Vofo, Gaelle V F Ngankam, Calypse A Ngwasiri, Jeannine A Atem, Leopold N Aminde
BACKGROUND: Endemic Burkitt's lymphoma is found predominantly in malaria holoendemic zones, typically in the tropical rain forest of Africa. It usually presents as an extra-nodal tumour in children and young adults with predilection for jaws and soft tissues of the abdomen. Clinical features depend on the primary tumour site, extent of the disease and histologic subtype. Acute blindness as a presentation sign is rare. CASE PRESENTATION: A 13 year old African female presented to our facility with a 3 week history of painful abdominal distention, and loss of vision of the left eye...
May 16, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29764277/human-papillomavirus-hpv-is-absent-in-branchial-cleft-cysts-of-the-neck-distinguishing-them-from-hpv-positive-cystic-metastasis
#11
Lars Sivars, David Landin, Marzia Rizzo, Linnea Haeggblom, Cinzia Bersani, Eva Munck-Wikland, Anders Näsman, Tina Dalianis, Linda Marklund
BACKGROUND: Distinguishing branchial cleft cysts (BCCs) from cystic metastases of a human papillomavirus (HPV) positive oropharyngeal squamous cell carcinoma (OPSCC) is challenging. Fine needle aspirates (FNAs) from cystic metastasis may be non-representative, while reactive squamous cells from BCC can be atypic. Based on cytology and with the support of HPV DNA positivity many centers treat cystic metastasis oncological and thus patients are spared neck dissection. To do so safely, one must investigate whether HPV DNA and p16INK4a overexpression is found exclusively in cystic metastases and not in BCC...
May 15, 2018: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/29763927/reactive-lymphoid-hyperplasia-or-tubercular-lymphadenitis-can-real-time-pcr-on-fine-needle-aspirates-help-physicians-in-concluding-the-diagnosis
#12
Vivek Gupta, Arvind Bhake
BACKGROUND: Enlarged lymph nodes in adult patients often present a diagnostic challenge. In the absence of granuloma or necrosis, the cytology/tissue findings are misleading and relate the enlarged lymph nodes to reactive lymphoid hyperplasia (RLH), because granuloma formation is an immunological response that usually takes 14-100 days to develop. This study assesses the role of real-time (RT)-PCR in the diagnosis of the Mycobacterium complex (MTBC) in lymph node aspirates compared with culture in cases of RLH...
May 15, 2018: Acta Cytologica
https://www.readbyqxmd.com/read/29760580/sinonasal-adenoid-cystic-carcinoma-role-of-on-site-fnac-a-case-report
#13
Santosh Tummidi, Kanchan Kothari, Roshni Patil, Shruti S Singhal, Vyoma Shah
Background: Adenoid cystic carcinoma (ACC), a rare tumor of epithelial cell origin, commonly arises from the major salivary glands. Uncommonly it may be found outside the salivary glands and it's especially rare in the nasal cavity. Case presentation: A 71-year female had complaints of swelling at the base of nose, Fine needle aspiration (FNA) from the swelling revealed features of adenoid cystic carcinoma; cell block & IHC for CD-117 was positive. Conclusions: Sino-nasal ACC (SNACC) continues to pose diagnostic and therapeutic challenges to clinicians...
2018: BMC Ear, Nose, and Throat Disorders
https://www.readbyqxmd.com/read/29759158/eus-fna-giving-way-to-fine-needle-biopsy-is-it-time-to-retire-your-old-trusted-needles
#14
EDITORIAL
Ihab I El Hajj, Mohammad Al-Haddad
No abstract text is available yet for this article.
June 2018: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/29757500/immunohistochemistry-for-histone-h3g34w-and-h3k36m-is-highly-specific-for-giant-cell-tumor-of-bone-and-chondroblastoma-respectively-in-fna-and-core-needle-biopsy
#15
Inga-Marie Schaefer, Jonathan A Fletcher, G Petur Nielsen, Angela R Shih, Marco L Ferrone, Jason L Hornick, Xiaohua Qian
BACKGROUND: Diagnosing giant cell-rich bone tumors can be challenging on limited biopsies. H3 histone family member 3A (H3F3A) (G34W/V/R/L) mutations are present in the majority of giant cell tumors (GCTs) of bone and H3 histone family member 3B (H3F3B) (K36M) mutations are present in nearly all chondroblastomas, but are absent in histologic mimics. Mutation-specific immunohistochemistry (IHC) is highly specific for GCT and chondroblastoma in surgical excisions. The objective of the current study was to validate H3G34W and H3K36M IHC in the diagnosis of giant cell-rich bone tumors on fine-needle aspiration and core needle biopsy specimens...
May 14, 2018: Cancer Cytopathology
https://www.readbyqxmd.com/read/29756323/primary-mediastinal-histiocytic-sarcoma-presenting-as-pleural-effusion
#16
Jie-Yang Jhuang, Wei-Yu Chen, Shih-Sung Chuang
Histiocytic sarcoma (HS) is a rare malignant neoplasm showing morphological and immunophenotypic features of mature tissue histiocytes. As HS may mimic non-Hodgkin lymphoma (NHL) pathologically, before the era of immunohistochemistry, many previously reported cases were misdiagnosed NHL. Up to date, there are only a few reports delineating the cytological features in fine-needle aspiration or bronchoalveolar lavage, but not in the effusion fluid yet. Herein, we report the case of a 61-year-old male with a mediastinal tumor presenting with malignant pleural effusion...
May 13, 2018: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29756285/evolution-of-a-rapid-onsite-evaluation-rose-service-for-endobronchial-ultrasound-guided-ebus-fine-needle-aspiration-fna-cytology-in-a-uk-hospital-a-7-year-audit
#17
Tracey Stevenson, Manish Powari, Christopher Bowles
OBJECTIVE: Endobronchial ultrasound fine needle aspiration (EBUS FNA) is a well-established procedure for the diagnosis and staging of lung cancer. We review our provision of this service at the Royal Devon and Exeter NHS Foundation Trust and the role of rapid onsite evaluation (ROSE) with the increasing demand for molecular markers in this era of personalized medicine. METHODS: A review of the changes in the Endoscopy clinic over the 7 years from the introduction of EBUS at the end of 2010 until 2017 was carried out...
May 13, 2018: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29756012/needle-fracture-during-endoscopic-ultrasound-guided-fine-needle-aspiration-using-a-needle-with-a-side-hole
#18
Takashi Sasaki, Ryo Kanata, Naoki Sasahira
Background and study aims  Endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) is widely performed to obtain pathological evidence from several parts of the body. Major complications of EUS-FNA are bleeding, pancreatitis, and abdominal pain. Needle fracture is a rare complication of EUS-FNA and only a few relevant reports are available. Here, we report a case of needle fracture during EUS-FNA using a needle with a side hole. A 61-year-old man underwent EUS-FNA of the uncinate process of the pancreas to confirm malignancy...
May 2018: Endoscopy International Open
https://www.readbyqxmd.com/read/29756005/peripheral-lymph-node-excisional-biopsy-yield-relevance-and-outcomes-in-a-remote-surgical-setup
#19
Ashish Lal Shrestha, Pradita Shrestha
Objective: To study the patient profile for symptomatic peripheral lymphadenopathy in terms of histopathological findings and demography and evaluate the yield, relevance, and outcomes of peripheral lymph node biopsy (PLNB) as a diagnostic step in a remote setup in the absence of less invasive options like fine-needle aspiration cytology (FNAC) or ultrasonogram- (USG-) guided FNAC. Methods: A retrospective review of patients undergoing PLNB between 1 May 2011 and 30 April 2013 was done...
2018: Surgery Research and Practice
https://www.readbyqxmd.com/read/29755268/cytogenetic-results-of-choroidal-nevus-growth-into-melanoma-in-55-consecutive-cases
#20
Carol L Shields, Maria Pefkianaki, Arman Mashayekhi, Jerry A Shields, Arupa Ganguly
Purpose: To investigate the cytogenetic results of choroidal nevus with photographically-documented transformation into choroidal melanoma. Methods: Retrospective analysis of 55 consecutive patients who underwent fine needle aspiration biopsy (FNAB) for DNA isolation and whole genome array based assay for chromosomes 3, 6, and 8 analysis prior to plaque radiotherapy. Tumors with abnormalities in chromosomes 3 and 8 were considered high-risk for metastasis. Results: At diagnosis of choroidal nevus the mean patient age was 57 years (median 57, range 10-83 years)...
January 2018: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
keyword
keyword
28900
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"