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Microcalcifications

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https://www.readbyqxmd.com/read/28296665/papillomas-of-the-breast-factors-associated-with-underestimation
#1
Gabriela Boufelli, Marcelo A Giannotti, Carlos A Ruiz, Nestor de Barros, Luciano F Chala, Jonathan Y Maesaka, Rodrigo Goncalves, Bárbara H Bresciani, Paula Vianna, José M Soares, Edmund C Baracat, José R Filassi
The distinction between benign and malignant papilloma of the breast through percutaneous needle biopsy can be difficult because of limited samples; the underestimation rate can be up to 25%. The aim of this study is to identify clinical and histological factors associated with underestimation, invasive ductal carcinoma, or ductal in-situ carcinoma (DCIS) of the breast found in surgical specimens from papillary lesions. This may contribute toward selection of patients for a follow-up strategy without the need for surgical excision...
March 14, 2017: European Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28292859/-18-f-fluoride-and-18-f-fluorodeoxyglucose-positron-emission-tomography-after-transient-ischemic-attack-or-minor-ischemic-stroke-case-control-study
#2
Alex T Vesey, William S A Jenkins, Agnese Irkle, Alastair Moss, Greg Sng, Rachael O Forsythe, Tim Clark, Gemma Roberts, Alison Fletcher, Christophe Lucatelli, James H F Rudd, Anthony P Davenport, Nicholas L Mills, Rustam Al-Shahi Salman, Martin Dennis, William N Whiteley, Edwin J R van Beek, Marc R Dweck, David E Newby
BACKGROUND: Combined positron emission tomography (PET) and computed tomography (CT) can assess both anatomy and biology of carotid atherosclerosis. We sought to assess whether (18)F-fluoride or (18)F-fluorodeoxyglucose can identify culprit and high-risk carotid plaque. METHODS AND RESULTS: We performed (18)F-fluoride and (18)F-fluorodeoxyglucose PET/CT in 26 patients after recent transient ischemic attack or minor ischemic stroke: 18 patients with culprit carotid stenosis awaiting carotid endarterectomy and 8 controls without culprit carotid atheroma...
March 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28289662/mucosa-associated-lymphoid-tissue-lymphoma-of-the-cecum-and-rectum-a-case-report
#3
Myung Jin Nam, Byung Chang Kim, Sung Chan Park, Chang Won Hong, Kyung Su Han, Dae Kyung Sohn, Weon Seo Park, Hee Jin Chang, Jae Hwan Oh
A colonic mucosa-associated lymphoid-tissue (MALT) lymphoma is relatively rare compared to lymphomas of the stomach or small intestine. We present a case of a MALT lymphoma in the cecum and rectum found during screening colonoscopy. A 54-year-old female, who had undergone right-breast-conserving surgery with axillary dissection due to an invasive ductal carcinoma and a left-breast excisional biopsy due to microcalcification following adjuvant chemoradiation therapy 3 years earlier, was found to have 3-mm-sized smooth elevated lesions in both the cecum and rectum...
February 2017: Annals of Coloproctology
https://www.readbyqxmd.com/read/28288659/a-clinical-model-for-identifying-the-short-term-risk-of-breast-cancer
#4
Mikael Eriksson, Kamila Czene, Yudi Pawitan, Karin Leifland, Hatef Darabi, Per Hall
BACKGROUND: Most mammography screening programs are not individualized. To efficiently screen for breast cancer, the individual risk of the disease should be determined. We describe a model that could be used at most mammography screening units without adding substantial cost. METHODS: The study was based on the Karma cohort, which included 70,877 participants. Mammograms were collected up to 3 years following the baseline mammogram. A prediction protocol was developed using mammographic density, computer-aided detection of microcalcifications and masses, use of hormone replacement therapy (HRT), family history of breast cancer, menopausal status, age, and body mass index...
March 14, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28285968/histologic-factors-predicting-invasion-in-patients-with-ductal-carcinoma-in-situ-dcis-in-the-preoperative-core-biopsy
#5
Areej M Al Nemer
BACKGROUND: It is desirable to decrease the underestimation rate of invasion in cases diagnosed as ductal carcinoma in situ (DCIS) in breast core needle biopsy (CNB) in order to determine the appropriate candidates for axillary staging. The objective of this study is to identify the predictors of invasion in histology. METHODS AND RESULTS: Consecutive 92 CNB's were retrospectively evaluated. The upstaging rate was 47.8% after surgery. Among all the evaluated parameters, high nuclear grade, single architectural pattern, marked periductal lymphocytic infiltration, partial myoepithelial loss and the presence of foci suspicious of microinvasion were the significant predictors of invasion (two tailed p values 0...
February 24, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28284000/a-method-for-microcalcifications-detection-in-breast-mammograms
#6
Abbas H Hassin Alasadi, Ahmed Kadem Hamed Al-Saedi
Breast cancer is the most cause of death for women above age 40 around the world. In this paper, we propose a method to detect microcalcifications in digital mammography images using two-dimensional Discrete Wavelets Transform and image enhancement techniques for removing noise as well as to get a better contrast. The initial step is applying a preprocessing techniques to improve the edge of the breast and then segmentation process (Region of interest) for eliminating some regions in the image, which are not useful for the mammography interpretation...
April 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28273370/features-of-papillary-thyroid-microcarcinoma-associated-with-lateral-cervical-lymph-node-metastasis
#7
Min Ji Jeon, Mi Sun Chung, Hyemi Kwon, Mijin Kim, Suyeon Park, Jung Hwan Baek, Dong Eun Song, Tae-Yon Sung, Suck Joon Hong, Tae Yong Kim, Won Bae Kim, Young Kee Shong, Jeong Hyun Lee, Won Gu Kim
OBJECTIVES: Papillary thyroid microcarcinoma (PTMC) has an excellent prognosis with an indolent disease course. However, some PTMCs have an aggressive course with lateral cervical lymph node (LCLN) metastasis or distant metastasis. This study aimed to evaluate the preoperative features of PTMC associated with LCLN metastasis. DESIGN AND PATIENTS: This retrospective cohort study with a nested, matched case-control design included 199 PTMC patients with LCLN metastasis at initial surgery (N1b group) and 196 PTMC patients without any LN metastasis or persistent disease (N0 NED group) as controls; primary tumour sizes were matched...
March 8, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28268510/simplified-computer-aided-detection-scheme-of-microcalcification-clusters-in-digital-breast-tomosynthesis-images
#8
Ji-Wook Jeong, Seung-Hoon Chae, Eun Young Chae, Hak Hee Kim, Young Wook Choi, Sooyeul Lee
A computer-aided detection (CADe) algorithm for clustered microcalcifications (MCs) in reconstructed digital breast tomosynthesis (DBT) images is suggested. The MC-like objects were enhanced by a Hessian-based 3D calcification response function, and a signal-to-noise ratio (SNR) enhanced image was also generated to screen the MC clustering seed objects. A connected component segmentation method was used to detect the cluster seed objects, which were considered as potential clustering centers of MCs. Bounding cubes for the accepted clustering seed candidate were generated and the overlapping cubes were combined and examined...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28240797/do-histopathological-features-and-microcalcification-affect-the-elasticity-of-breast-cancer
#9
Gamze Durhan, Pelin Seher Öztekin, Hatice Ünverdi, Tülin Değirmenci, Abdullah Durhan, Jale Karakaya, Pınar Nercis Koşar, Enver Necip Köseoğlu, Sema Hücümenoğlu
OBJECTIVES: The aim of this study was to evaluate any association between histological grade, molecular subtypes of breast cancer, and strain elastography, and to investigate whether microcalcification affects the stiffness of tumor in breast cancers with the same histological grade. METHODS: Between April 2015 and March 2016, 94 lesions of 94 patients with the diagnosis of invasive ductal carcinoma were included in the study. Strain elastography was performed on all patients before biopsy...
February 27, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28238415/the-outcome-of-papillary-lesions-of-the-breast-diagnosed-by-standard-core-needle-biopsy-within-a-breastscreen-australia-service
#10
Jane E Armes, Christine Galbraith, Janet Gray, Kathleen Taylor
Papillary lesions of the breast are most commonly diagnosed via mammographic screening. The standard practice has been to excise these lesions, since a subset of papillary lesions are neoplastic. However, this approach leads to a high proportion of negative excisions. In order to identify papillary lesions which could be managed by surveillance alone, we assessed the outcome of 103 papillary lesions diagnosed on core needle biopsy in a public screening program. Subsequent excision biopsy led to an upgrade to malignancy in 30% of cases...
February 23, 2017: Pathology
https://www.readbyqxmd.com/read/28235652/ultrasonographic-findings-of-thyroglossal-duct-papillary-carcinoma-a-case-report
#11
Chonticha Srivanitchapoom, Pichit Sittitrai, Kedsaraporn Yata, Piyadara Khongpiboonkit
INTRODUCTION: Reports on thyroglossal duct cyst carcinoma (TGDCCa) are rare, occurring in approximately 1% of thyroglossal duct cyst (TGDC) cases. The origin and treatment of carcinoma arising in TGDC are controversy. PRESENTATION OF CASE: A 38-year-old woman presented with a midline neck mass at the thyrohyoid level for 3 years. Ultrasound revealed a 2.4cm cystic mass with a solid mural component and microcalcification. A small right thyroid nodule was also detected...
February 13, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28226684/simplified-computer-aided-detection-scheme-of-microcalcification-clusters-in-digital-breast-tomosynthesis-images
#12
Ji-Wook Jeong, Seung-Hoon Chae, Eun Young Chae, Hak Hee Kim, Young Wook Choi, Sooyeul Lee, Ji-Wook Jeong, Seung-Hoon Chae, Eun Young Chae, Hak Hee Kim, Young Wook Choi, Sooyeul Lee, Sooyeul Lee, Ji-Wook Jeong, Hak Hee Kim, Eun Young Chae, Young Wook Choi, Seung-Hoon Chae
A computer-aided detection (CADe) algorithm for clustered microcalcifications (MCs) in reconstructed digital breast tomosynthesis (DBT) images is suggested. The MC-like objects were enhanced by a Hessian-based 3D calcification response function, and a signal-to-noise ratio (SNR) enhanced image was also generated to screen the MC clustering seed objects. A connected component segmentation method was used to detect the cluster seed objects, which were considered as potential clustering centers of MCs. Bounding cubes for the accepted clustering seed candidate were generated and the overlapping cubes were combined and examined...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28222584/ultrasonographic-imaging-of-papillary-thyroid-carcinoma-variants
#13
Jung Hee Shin
Ultrasonography (US) is routinely used to evaluate thyroid nodules. The US features of papillary Epub ahead of print thyroid carcinoma (PTC), the most common thyroid malignancy, include hypoechogenicity, spiculated/microlobulated margins, microcalcifications, and a nonparallel orientation. However, many PTC variants have been identified, some of which differ from the classic type of PTC in terms of biological behavior and clinical outcomes. This review describes the US features and clinical implications of the variants of PTC...
January 12, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28217407/elastography-targeted-thyroid-nodule-aspiration-a-novel-approach
#14
Elliot Landau, Danielle Del Re, Bina Kviatkovsky, Aryeh Rothstein, Jonathan Scheiner, Cheryl Lin
OBJECTIVES: Since 2009, the rate of nondiagnostic (ND) thyroid nodule fine-needle aspiration (FNA) has ranged from 2% to 20%. A ND result can cause further patient morbidity secondary to repeated procedures and delay in diagnosis. The use of real-time strain elastography (RTE) in determining nodule malignant risk has gained considerable focus recently. A less studied area where RTE may prove beneficial is its role in targeting areas for FNA. Our hypothesis is that FNA performed in concurrence with RTE will show a decreased rate of ND results leading to fewer repeated FNA...
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/28214967/increased-atrial-%C3%AE-adrenergic-receptors-and-grk-2-gene-expression-can-play-a-fundamental-role-in-heart-failure-after-repair-of-congenital-heart-disease-with-cardiopulmonary-bypass
#15
Marcela Silva Oliveira, Fabio Carmona, Walter V A Vicente, Paulo H Manso, Karina M Mata, Mara Rúbia Celes, Erica C Campos, Simone G Ramos
Surgeries to correct congenital heart diseases are increasing in Brazil and worldwide. However, even with the advances in surgical techniques and perfusion, some cases, especially the more complex ones, can develop heart failure and death. A retrospective study of patients who underwent surgery for correction of congenital heart diseases with cardiopulmonary bypass (CPB) in a university tertiary-care hospital that died, showed infarction in different stages of evolution and scattered microcalcifications in the myocardium, even without coronary obstruction...
February 18, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28185408/full-field-digital-mammography-is-the-apparent-increased-detection-of-microcalcification-leading-to-over-investigation-and-over-diagnosis
#16
Alan J Porter, Elizabeth B Evans, Lisa M Erzetich
INTRODUCTION: Modern full-field digital mammography (FFDM) appears to have increased the detection of breast microcalcification. This retrospective study aimed to assess whether this is associated with over-investigation and possible over-diagnosis of breast pathology of lesser significance. METHODS: Three 2-year periods were studied, in which different mammographic technologies were used exclusively viz., classical screen-film mammography (SFM) in 2003-04, computed radiography (CR) in 2009-10 and FFDM in 2012-13...
February 9, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28182277/improving-computer-aided-detection-assistance-in-breast-cancer-screening-by-removal-of-obviously-false-positive-findings
#17
Jan-Jurre Mordang, Albert Gubern-Mérida, Alessandro Bria, Francesco Tortorella, Gerard den Heeten, Nico Karssemeijer
PURPOSE: Computer-Aided Detection (CADe) systems for mammography screening still mark many false positives. This can cause that radiologists lose confidence in CADe, especially when many false positive are obviously not suspicious to them. In this study we focus on obvious false positives generated by microcalcification detection algorithms. METHODS: We aim at reducing the number of obvious false positive findings by adding an additional step in the detection method...
February 9, 2017: Medical Physics
https://www.readbyqxmd.com/read/28161068/distribution-and-potential-significance-of-intravillous-and-intrafibrinous-particulate-microcalcification
#18
Jennifer Zeng, Alan Marcus, Tatiana Buhtoiarova, Khushbakhat Mittal
Radiologic studies indicate that placental calcifications seen at 28-32 weeks' gestation are associated with adverse fetal outcome. One type of placental calcification is typically located at the basement membrane of chorionic villi. It has a fine particulate appearance and can only be seen microscopically. We have designated these calcifications as Intravillous and Intrafibrinous Particulate MicroCalcification (IPMC). In this study we examined the distribution and potential significance of IPMC. Placentas from 14 groups of fetal and maternal outcomes are examined histologically for IPMC...
February 2017: Placenta
https://www.readbyqxmd.com/read/28160395/a-novel-disorder-of-sex-development-characterized-by-progressive-regression-of-testicular-function-and-cystic-leukoencephalopathy
#19
Massimiliano Rossi, Alexandre Vasiljevic, Audrey Labalme, Frédérique Dijoud, Delphine Mallet-Motak, Carmen Adina Petcu, Renaud Touraine, Christine Vianey-Saban, Laurent Guibaud, Patrick Edery, Damien Sanlaville, Yves Morel
We report a novel syndromic disorder of sex development observed in three male siblings, presenting with the association of micropenis without hypospadias, cryptorchidism, very low level of antimüllerian hormone in the neonatal period, and no persistent müllerian duct structures, suggesting a progressive regression of testicular function. The patients described here showed a striking neurological involvement including bilateral periventricular cysts observed in the anterior part of the frontal horns prenatally and increasing in size and number over time, associated with infra and supratentorial parenchymal atrophy, dilated ventricular system, corpus callosum hypoplasia, severe intellectual disability, and epilepsy...
March 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28145839/ultrasonographic-evaluation-of-cervical-lymph-nodes-in-thyroid-cancer
#20
Maria Regina Marrocos Machado, Marcos Roberto Tavares, Carlos Alberto Buchpiguel, Maria Cristina Chammas
Objective To determine what ultrasonographic features can identify metastatic cervical lymph nodes, both preoperatively and in recurrences after complete thyroidectomy. Study Design Prospective. Setting Outpatient clinic, Department of Head and Neck Surgery, School of Medicine, University of São Paulo, Brazil. Subjects and Methods A total of 1976 lymph nodes were evaluated in 118 patients submitted to total thyroidectomy with or without cervical lymph node dissection. All the patients were examined by cervical ultrasonography, preoperatively and/or postoperatively...
February 2017: Otolaryngology—Head and Neck Surgery
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