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https://www.readbyqxmd.com/read/29045292/ovarian-metastases-of-breast-cancers-with-signet-ring-cells-a-report-of-17-cases-including-14-krukenberg-tumors
#1
Jennifer A Bennett, Robert H Young, Ai-Ying Chuang, Melinda F Lerwill
Krukenberg tumor, defined as metastatic adenocarcinoma to the ovary containing at least 10% signet ring cells, usually arises from the stomach but can also originate from other sites. We reviewed 17 metastatic breast carcinomas to the ovary with signet ring cells to potentially identify features indicative of mammary origin as opposed to other possible primary sites. The patients ranged from 41 to 76 (mean, 53.6) yr. Fourteen had a prior history of invasive breast carcinoma (invasive ductal carcinoma, 4; invasive lobular carcinoma, 3; adenocarcinoma not otherwise specified, 3; carcinoma with ductal and lobular features, 2; and unspecified carcinoma, 2) and metastases were identified 2 to 284 (mean, 79) mo after the original diagnosis...
October 17, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/29045232/imaging-neoadjuvant-therapy-response-in-breast-cancer
#2
Amy M Fowler, David A Mankoff, Bonnie N Joe
The use of neoadjuvant systemic therapy in the treatment of breast cancer patients is increasing beyond the scope of locally advanced disease. Imaging provides important information in assessing response to therapy as a complement to conventional tumor measurements via physical examination. The purpose of this article is to discuss the advantages and limitations of current assessment methods, as well as review functional and molecular imaging approaches being investigated as emerging techniques for evaluating neoadjuvant therapy response for patients with primary breast cancer...
November 2017: Radiology
https://www.readbyqxmd.com/read/29044914/-a-facile-cyclization-method-improves-peptide-serum-stability-and-confers-intrinsic-fluorescence
#3
Chayanon Ngambenjawong, Heather Gustafson, Meilyn Sylvestre, Suzie Pun
Peptides are a growing class of macromolecules used in pharmaceutics. The path toward clinical use of candidate peptides involves sequence optimization and cyclization for stability and affinity. For internalized peptides, tagging is also often required for intracellular trafficking studies, although fluorophore conjugation has been shown to impact peptide binding, permeability, and localization. Here, we report a strategy based on cysteine arylation with tetrafluoroterephthalonitrile (4F-2CN) that simultaneously cyclizes peptides and imparts fluorescence...
October 17, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/29044896/support-vector-machine-for-breast-cancer-classification-using-diffusion-weighted-mri-histogram-features-preliminary-study
#4
Igor Vidić, Liv Egnell, Neil P Jerome, Jose R Teruel, Torill E Sjøbakk, Agnes Østlie, Hans E Fjøsne, Tone F Bathen, Pål Erik Goa
BACKGROUND: Diffusion-weighted MRI (DWI) is currently one of the fastest developing MRI-based techniques in oncology. Histogram properties from model fitting of DWI are useful features for differentiation of lesions, and classification can potentially be improved by machine learning. PURPOSE: To evaluate classification of malignant and benign tumors and breast cancer subtypes using support vector machine (SVM). STUDY TYPE: Prospective. SUBJECTS: Fifty-one patients with benign (n = 23) and malignant (n = 28) breast tumors (26 ER+, whereof six were HER2+)...
October 16, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29043992/correlation-of-the-ultrasound-imaging-of-breast-cancer-and-the-expression-of-molecular-biological-indexes
#5
Jie Xu, Feng Li, Fengling Chang
This paper aims to 137 cases of breast malignant tumors confirmed by surgery and pathology were collected. All patients received ultrasound examination and were not treated by radiotherapy or chemotherapy before operation. The preoperative ultrasound images of breast cancer patients and postoperative pathological characteristics of paraffin sections were retrospectively observed. Ultrasound indicators included tumor size, shape, ratio of the longest/shortest dimension, edge of the spiculation and peripheral hyperechoic halo sign, internal echo types, micro calcification, posterior echo types, blood flow and signs of lymph node metastasis...
July 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29043713/bioorthogonal-chemical-imaging-of-metabolic-changes-during-epithelial-mesenchymal-transition-of-cancer-cells-by-stimulated-raman-scattering-microscopy
#6
Luyuan Zhang, Wei Min
Study of metabolic changes during epithelial-mesenchymal transition (EMT) of cancer cells is important for basic understanding and therapeutic management of cancer progression. We here used metabolic labeling and stimulated Raman scattering (SRS) microscopy, a strategy of bioorthogonal chemical imaging, to directly visualize changes in anabolic metabolism during cancer EMT at a single-cell level. MCF-7 breast cancer cell is employed as a model system. Four types of metabolites (amino acids, glucose, fatty acids, and choline) are labeled with either deuterium or alkyne (C≡C) tag...
October 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29043480/body-mass-index-bmi-postoperative-appearance-satisfaction-and-sexual-function-in-breast-cancer-survivorship
#7
K E Rojas, N Matthews, C Raker, M A Clark, M Onstad, A Stuckey, J Gass
PURPOSE: We sought to explore the correlation between BMI and postoperative sexual function, body image, and breast-specific sensuality before and after breast cancer surgery. METHODS: A cross-sectional survey of patients at least 1 year from surgery employed the Female Sexual Function Index (FSFI) and investigator-generated questions. Patients who underwent lumpectomy (L), mastectomy (M), and mastectomy with reconstruction (MR) were compared across three BMI groups: normal weight, overweight, and obese...
October 17, 2017: Journal of Cancer Survivorship: Research and Practice
https://www.readbyqxmd.com/read/29043471/nanostructured-lipid-carrier-co-loaded-with-doxorubicin-and-docosahexaenoic-acid-as-a-theranostic-agent-evaluation-of-biodistribution-and-antitumor-activity-in-experimental-model
#8
Renata S Fernandes, Juliana O Silva, Samuel V Mussi, Sávia C A Lopes, Elaine A Leite, Geovanni D Cassali, Valbert N Cardoso, Danyelle M Townsend, Patrick M Colletti, Lucas A M Ferreira, Domenico Rubello, André L B de Barros
PURPOSE: Nanotheranostic platforms, i.e., the combination of both therapeutic and diagnostic agents on a single platform, are emerging as an interesting tool for the personalized cancer medicine. Therefore, the aim of this work was to evaluate the in vivo properties of a Tc-99m-labeled nanostructured lipid carrier (NLC) formulation, co-loaded with doxorubicin (DOX) and docosahexaenoic acid (DHA), for theranostic applications. PROCEDURES: NLC-DHA-DOX were prepared busing the hot melting homogenization method using an emulsification-ultrasound and were radiolabeled with Tc-99m...
October 17, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/29042074/stereotactic-vacuum-assisted-breast-biopsy-comparison-between-11-and-8-gauge-needles
#9
Irene Ruggirello, Jacopo Nori, Isacco Desideri, Calogero Saieva, Elisabetta Giannotti, Giulia Bicchierai, Diego De Benedetto, Giulio Francolini, Simonetta Bianchi, Vania Vezzosi, Luis Sanchez, Tommaso Susini, Lorenzo Orzalesi, Icro Meattini, Lorenzo Livi, Vittorio Miele
PURPOSE: The 11-gauge (11G) stereotactic vacuum-assisted breast biopsy (VABB) showed a better profile than 14G-VABB in terms of feasibility, safety, microcalcification sampling, and accuracy. Underestimation rates were significantly lower with 11G-VABB than with 14G-VABB. Thus, the introduction of an even larger needle at the VABB procedure could reduce this rate further. The purpose of this study was to compare the overall performance of stereotactic VABB with 8G and 11G needles. MATERIALS AND METHODS: Four hundred and three VABBs performed between July 2012 and February 2015 at the Breast Diagnostic Unit of Careggi Hospital in Florence were retrospectively analyzed; 197 were performed with 11G-VABB and 206 with 8G-VABB...
October 6, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29040037/influence-of-risk-category-and-screening-round-on-the-performance-of-an-mr-imaging-and-mammography-screening-program-in-carriers-of-the-brca-mutation-and-other-women-at-increased-risk
#10
Suzan Vreemann, Albert Gubern-Mérida, Margrethe S Schlooz-Vries, Peter Bult, Carla H van Gils, Nicoline Hoogerbrugge, Nico Karssemeijer, Ritse M Mann
Purpose To evaluate the real-life performance of a breast cancer screening program for women with different categories of increased breast cancer risk with multiple follow-up rounds in an academic hospital with a large screening population. Materials and Methods Screening examinations (magnetic resonance [MR] imaging and mammography) for women at increased breast cancer risk (January 1, 2003, to January 1, 2014) were evaluated. Risk category, age, recall for workup of screening-detected abnormalities, biopsy, and histopathologic diagnosis were recorded...
October 16, 2017: Radiology
https://www.readbyqxmd.com/read/29039725/high-risk-breast-lesions-a-machine-learning-model-to-predict-pathologic-upgrade-and-reduce-unnecessary-surgical-excision
#11
Manisha Bahl, Regina Barzilay, Adam B Yedidia, Nicholas J Locascio, Lili Yu, Constance D Lehman
Purpose To develop a machine learning model that allows high-risk breast lesions (HRLs) diagnosed with image-guided needle biopsy that require surgical excision to be distinguished from HRLs that are at low risk for upgrade to cancer at surgery and thus could be surveilled. Materials and Methods Consecutive patients with biopsy-proven HRLs who underwent surgery or at least 2 years of imaging follow-up from June 2006 to April 2015 were identified. A random forest machine learning model was developed to identify HRLs at low risk for upgrade to cancer...
October 17, 2017: Radiology
https://www.readbyqxmd.com/read/29038934/characterisation-of-fibrosis-in-chemically-induced-rat-mammary-carcinomas-using-multi-modal-endogenous-contrast-mri-on-a-1-5t-clinical-platform
#12
Neil P Jerome, Jessica K R Boult, Matthew R Orton, James A d'Arcy, Ashutosh Nerurkar, Martin O Leach, Dow-Mu Koh, David J Collins, Simon P Robinson
OBJECTIVES: To determine the ability of multi-parametric, endogenous contrast MRI to detect and quantify fibrosis in a chemically-induced rat model of mammary carcinoma. METHODS: Female Sprague-Dawley rats (n=18) were administered with N-methyl-N-nitrosourea; resulting mammary carcinomas underwent nine-b-value diffusion-weighted (DWI), ultrashort-echo (UTE) and magnetisation transfer (MT) magnetic resonance imaging (MRI) on a clinical 1.5T platform, and associated quantitative MR parameters were calculated...
October 16, 2017: European Radiology
https://www.readbyqxmd.com/read/29038724/idiopathic-granulomatous-mastitis-dilemmas-in-diagnosis-and-treatment
#13
Rahim Mahmodlou, Niloofar Dadkhah, Fariba Abbasi, Jafar Nasiri, Rohollah Valizadeh
BACKGROUND: Idiopathic granulomatous mastitis (IGM) is a benign rare inflammatory disease of the breast. Due to its uncommon etiology, diagnosis and treatment is still unknown. Selection of a standard method for diagnosing idiopathic granulomatous mastitis is sophisticated. In view of non-definitive clinical and imaging finding, histopathology is the cornerstone of definitive diagnosis. OBJECTIVE: To determine and help solve the dilemma of treatment and diagnosis of idiopathic granulomatous mastitis...
September 2017: Electronic Physician
https://www.readbyqxmd.com/read/29036752/breast-cancer-screening-updated-recommendations-of-the-brazilian-college-of-radiology-and-diagnostic-imaging-brazilian-breast-disease-society-and-brazilian-federation-of-gynecological-and-obstetrical-associations
#14
Linei Augusta Brolini Dellê Urban, Luciano Fernandes Chala, Selma di Pace Bauab, Marcela Brisighelli Schaefer, Radiá Pereira Dos Santos, Norma Medicis de Albuquerque Maranhão, Ana Lucia Kefalas, José Michel Kalaf, Carlos Alberto Pecci Ferreira, Ellyete de Oliveira Canella, João Emílio Peixoto, Heverton Leal Ernesto de Amorim, Helio Sebastião Amâncio de Camargo Junior
No abstract text is available yet for this article.
October 2017: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/29036067/analyzing-visual-search-observers-using-eye-tracking-data-for-digital-breast-tomosynthesis-images
#15
Zhengqiang Jiang, Mini Das, Howard C Gifford
Visual-search (VS) model observers have the potential to provide reliable predictions of human-observer performance in detection-localization tasks. The purpose of this work was to examine some characteristics of human gaze on breast images with the goal of informing the design of our VS observers. Using a helmet-mounted eye-tracking system, we recorded the movement of gaze from human observers as they searched for masses in sets of 2D digital breast tomosynthesis (DBT) images. The masses in this study were of a single profile...
June 1, 2017: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/29035996/radioguided-occult-lesion-localization-technical-procedures-and-clinical-applications
#16
Gianpiero Manca, Sara Mazzarri, Domenico Rubello, Elisa Tardelli, Roberto C Delgado-Bolton, Francesco Giammarile, Manuela Roncella, Duccio Volterrani, Patrick M Colletti
PURPOSE: Regarding radioguided surgery, the concept of "radioguided occult lesion localization" (ROLL) is based on both preoperative interventional imaging and intraoperative radioguided detection of a clinically occult neoplastic lesion. METHODS: This methodology consists in the direct administration into the lesion of Tc-macroaggregated human albumin formed by relatively large particles retained at the injection site, which direct radioguided excisional biopsy...
October 13, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29035873/multi-task-transfer-learning-deep-convolutional-neural-network-application-to-computer-aided-diagnosis-of-breast-cancer-on-mammograms
#17
Ravi K Samala, Heang-Ping Chan, Lubomir M Hadjiiski, Mark A Helvie, Kenny Cha, Caleb Richter
Transfer learning in deep convolutional neural networks (DCNNs) is an important step in its application to medical imaging tasks. We propose a multi-task transfer learning DCNN with the aims of translating the 'knowledge' learned from non-medical images to medical diagnostic tasks through supervised training and increasing the generalization capabilities of DCNNs by simultaneously learning auxiliary tasks. We studied this approach in an important application: classification of malignant and benign breast masses...
October 16, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29033686/serendipitous-detection-of-extraosseous-metastases-on-bone-scintigraphy-utility-of-cross-sectional-and-correlative-imaging
#18
Jiwan Paudel, Harmandeep Singh, Ashwani Sood, Anish Bhattacharya, Bhagwant Rai Mittal
Whole body bone scintigraphy is most commonly used imaging modality to detect and assess the extent of osteoblastic osseous metastases in malignant conditions, though visceral metastases need additional imaging. The authors describe a case of 50-year-old postoperative breast cancer female where bone scintigraphy showed soft tissue uptake in thorax and hepatic region in addition to multiple skeletal metastases, indicating the involvement of three different organs by metastatic disease. The present case highlights that extraosseous tracer uptake in addition to abnormal osseous tracer uptake may raise the suspicion of widespread and visceral metastatic disease and warrant further evaluation in the form of cross-sectional and correlative imaging...
October 2017: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29033679/incremental-value-of-single-photon-emission-computed-tomography-computed-tomography-for-characterization-of-skeletal-lesions-in-breast-cancer-patients
#19
Thanuja Mahaletchumy, Aini AbAziz
The incremental value of single-photon emission computed tomography-computed tomography (SPECT-CT) over planar bone scintigraphy and SPECT in detecting skeletal lesions in breast cancer patients and its effect on patient management is assessed in this study. This is a prospective study which was conducted over 1-year duration. Whole-body planar scintigraphy, SPECT, and SPECT-CT were performed in 85 breast cancer patients with total of 128 lesions. Correlative imaging and clinical follow-up was used as the reference standard...
October 2017: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29033675/considering-the-relationship-between-quantitative-parameters-and-prognostic-factors-in-breast-cancer-can-mean-standardized-uptake-value-be-an-alternative-to-maximum-standardized-uptake-value
#20
Reyhan Köroğlu, İsmail Köksal, Fikri Selçuk Şimşek, Fatma Gezer, Ersoy Kekilli, Bülent Ünal
It was aimed to investigate the correlation between maximum standardized uptake value (SUVmax), mean standardized uptake value (SUVmean), and retention index (RI), which represents the quantitative evaluation of the uptake of (18)F-fluoro-2-deoxy-D-glucose ((18)F-FDG) used in positron emission tomography (PET) and clinicopathologic as well as biologic prognostic factors. Forty-one women with breast cancer who were histopathologically diagnosed were included in this study. Neoadjuvant chemotherapy was applied to all patients before PET/computed tomography (CT)...
October 2017: World Journal of Nuclear Medicine
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