keyword
MENU ▼
Read by QxMD icon Read
search

Calcification

keyword
https://www.readbyqxmd.com/read/29161784/calcifying-epithelial-odontogenic-cyst
#1
Balaji Manohar, Dhritiman Baidya, Neema Shetty, Aditi Mathur, Barkha Makhijani
The Calcifying Odontogenic Cyst was first described as a distinct clinicopathologic entity by Gorlin and his colleagues in 1962. Gold (1963) chose a similar, but not identical term for the lesion, namely 'keratinizing and calcifying odontogenic cyst'. The calcifying cystic odontogenic tumor (CCOT) is a new designation of calcifying odontogenic cyst (COC) recommended by the 2005 classification of the World Health Organization (WHO). The calcifying odontogenic cyst is not a common lesion; the dentinogenic ghost cell tumor is even less common and should be considered rare...
November 2017: Journal of Experimental Therapeutics & Oncology
https://www.readbyqxmd.com/read/29160109/editorial-comment-on-end-2017-0618-or-r1
#2
Mordechai Duvdevani
Percutaneous nephrolithotomy (PCNL) is currently the treatment of choice for large and complex renal calculi. One of the main advantages of PCNL is gaining a real stone-free status in a single session. However, there are several major complications that necessitate careful patient selection for this surgery (1). In this well written manuscript the authors deal with the true rates and importance of residual fragments following PCNL surgeries done in a high volume center. They reviewed 658 PCNL procedures from 2008-2013 that underwent a CT scan on post-operative day one...
November 21, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/29159941/the-role-of-off-focus-radiation-in-scatter-correction-for-dedicated-cone-beam-breast-ct
#3
Linxi Shi, Srinivasan Vedantham, Andrew Karellas, Lei Zhu
PURPOSE: Dedicated cone beam breast CT (CBBCT) suffers from x-ray scatter contamination. We aim to identify the source of the significant difference between the scatter distributions estimated by two recent methods proposed by our group and to investigate its effect on CBBCT image quality. METHOD: We recently proposed two novel methods of scatter correction for CBBCT, using a library based (LB) technique and a forward projection (FP) model. Despite similar enhancement on CBBCT image qualities, these two methods obtain very different scatter distributions...
November 21, 2017: Medical Physics
https://www.readbyqxmd.com/read/29159170/a-case-of-dystrophic-calcification-in-the-masseter-muscle
#4
Heon-Young Kim, Jung-Hyun Park, Jun-Bum Lee, Sun-Jong Kim
Background: Dystrophic calcification can occur in any soft tissue with the absence of a systemic mineral imbalance and is often associated with trauma, infection, or inflammation. It is easily found in the site of the heart and skeletal muscles and rarely appears in the head and neck area. Case report: We present a rare case of multiple calcified masses in the left masseter muscle of a 26-year-old female with a history of trauma in the area. In computed tomography, multiple radiopaque masses were observed inside the left masseter muscle and blood test results were normal...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29158070/assessment-of-carotid-calcifications-on-digital-panoramic-radiographs-retrospective-analysis-and-review-of-the-literature
#5
Inês Alves Monteiro, Carlos Ibrahim, Rui Albuquerque, Neil Donaldson, Filomena Salazar, Luis Monteiro
OBJECTIVES: To assess the validity of digital panoramic radiographs as an effective means of diagnosis for atherosclerosis and as a potential aid in the early detection of the disease. STUDY DESIGN: We reviewed 2014 digital panoramic radiographs taken throughout 2012 and 2013 to identify the presence of calcified atherosclerotic plaques of both female and male patients all aged over 18 years. In addition the medical records of these patients were reviewed in order to establish if there were any predisposing risk factors for atherosclerosis...
November 17, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29158034/different-notch-signaling-in-cells-from-calcified-bicuspid-and-tricuspid-aortic-valves
#6
A Kostina, A Shishkova, E Ignatieva, O Irtyuga, M Bogdanova, K Levchuk, A Golovkin, E Zhiduleva, V Uspenskiy, O Moiseeva, G Faggian, J Vaage, A Kostareva, A Rutkovskiy, A Malashicheva
AIMS: Calcific aortic valve disease is the most common heart valve disease in the Western world. Bicuspid and tricuspid aortic valve calcifications are traditionally considered together although the dynamics of the disease progression is different between the two groups of patients. Notch signaling is critical for bicuspid valve development and NOTCH1 mutations are associated with bicuspid valve and calcification. We hypothesized that Notch-dependent mechanisms of valve mineralization might be different in the two groups...
November 17, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29157538/mast-cells-in-calcific-aortic-stenosis
#7
Ivo Šteiner, Václav Stejskal, Pavel Žáček
In developed countries, calcific aortic stenosis (CAS) has become the most common acquired valvular disease and reason for aortic valve replacement. It is considered a form of atherosclerosis and, like the latter, of inflammatory origin, with presence in the calcified aortic valves of blood vessels, lymphatics, lymphocytes, plasma cells, histiocytes, and sometimes also of metaplastic bone tissue. This study is aimed at examining the presence of CD117 - positive mast cells in CAS. In 56 examined calcified aortic valves excised by cardiac surgery, mast cells were constantly present as a part of the polymorphous cellular infiltrate; in individual cases, their numbers were 1-90 (median 24)...
July 23, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29157086/abdominal-aortic-calcification-score-among-several-vascular-calcification-scores-of-plain-radiograph-is-the-most-reliable-predictor-of-severe-coronary-artery-calcification-in-dialysis-patients
#8
Su Mi Lee, Hye Won Lee, Young Ki Son, Seong Eun Kim, Won Suk An
AIM: Coronary artery calcification (CAC) score on computed tomography (CT) or vascular calcification (VC) scores on plain radiographs are associated with cardiovascular events and fracture. We investigated which VC score among several VC scores on plain radiographs is predictor of CAC, and whether VC scores are related with bone mineral density (BMD) in dialysis patients. METHODS: We checked several plain radiographs (hands and pelvis [HP], feet and lateral lumbar spine), BMD and multidetector CT scans of 55 patients maintaining dialysis in this cross-sectional study...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/29156458/-imaging-in-rhabdomyolysis-with-ectopic-dystrophic-calcification
#9
Joseph Kauer, Olga Maksimovic, Michael Haap, Marius Horger
No abstract text is available yet for this article.
December 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/29155942/detergent-based-decellularization-strategy-preserves-macro-and-microstructure-of-heart-valves
#10
Jessica Haupt, Georg Lutter, Stanislav N Gorb, Dan T Simionescu, Derk Frank, Jette Seiler, Alina Paur, Irma Haben
OBJECTIVES: Biological tissue has great potential to function as bioprostheses in patients for heart valve replacement. As these matrices are mainly xenogenic, the immunogenicity needs to be reduced by decellularization steps. Reseeding of bioscaffolds has tremendous potential to prevent calcification upon implantation, so intact microstructure of the material is mandatory. An optimal decellularization protocol of heart valves resulting in adequate preservation of the extracellular architecture has still not been developed...
October 9, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29155634/how-does-imaging-of-congenital-zika-compare-with-imaging-of-other-torch-infections
#11
Deborah Levine, Jacques C Jani, Ilse Castro-Aragon, Mieke Cannie
The acronym TORCH is used to refer to congenital infections, such as toxoplasmosis, other infections (such as syphillis, varicella-zoster, and parvovirus B19), cytomegalovirus, and herpes simplex virus. The classic findings in patients with TORCH infections include rash in the mother during pregnancy and ocular findings in the newborn. Zika virus has emerged as an important worldwide congenital infection. It fits well with other congenital TORCH infections since there is a rash in the mother and there are commonly ocular abnormalities in the newborn...
December 2017: Radiology
https://www.readbyqxmd.com/read/29154089/triple-achilles-tendon-rupture-case-report
#12
Amol Saxena, Deann Hofer
We present a case report with 1-year follow-up data of a 57-year-old male soccer referee who had sustained an acute triple Achilles tendon rupture injury during a game. His triple Achilles tendon rupture consisted of a rupture of the proximal watershed region, a rupture of the main body (mid-watershed area), and an avulsion-type rupture of insertional calcific tendinosis. The patient was treated surgically with primary repair of the tendon, including tenodesis with anchors. Postoperative treatment included non-weightbearing for 4 weeks and protected weightbearing until 10 weeks postoperative, followed by formal physical therapy, which incorporated an "antigravity" treadmill...
November 16, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29153962/sonographic-criteria-predictive-of-malignant-thyroid-nodules-which-lesions-should-be-biopsied
#13
Carlos Miguel Oliveira, Rui Alves Costa, Miguel Patrício, Amélia Estêvão, Bruno Graça, Filipe Caseiro-Alves
RATIONALE AND OBJECTIVES: The objective of this study was to evaluate the ultrasound features of thyroid nodules and their association with malignancy, focusing on establishing feature-oriented ultrasound criteria to determine proper management of a thyroid nodule. MATERIALS AND METHODS: A sample of 379 thyroid nodules were biopsied (from a total of 357 patients aged 59.8 ± 14.8 years) and 300 were included in the final study (271 benign nodules and 29 malignant ones)...
November 16, 2017: Academic Radiology
https://www.readbyqxmd.com/read/29153811/calcific-degeneration-of-cormatrix-4-years-after-bicuspidization-of-unicuspid-aortic-valve
#14
Zahra Mosala Nezhad, Pamela Baldin, Alain Poncelet, Gebrine El Khoury
We report the long-term outcomes of a 12-year-old boy who underwent bicuspidization of a severely stenotic unicuspid aortic valve with CorMatrix small intestinal submucosal extracellular matrix (CorMatrix Cardiovascular, Roswell, GA). CorMatrix supported favorable immediate surgical and echocardiographic outcomes and maintained stable growing functional dynamics for 2 years. At 52.5 months in situ, however, the valve failed with severe calcification, fibrosis, and retraction necessitating a redo operation. Reconstructive operations with CorMatrix are feasible, but this result questions its capacity for constructive remodeling in left-sided valve repair...
December 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29153686/progression-of-gestational-hypertension-to-pre-eclampsia-a-cohort-study-of-20-103-pregnancies
#15
Kuo-Hu Chen, Kok-Min Seow, Li-Ru Chen
OBJECTIVE: To investigate previously un-identified risk factors for the progression of gestational hypertension (GH) to pre-eclampsia (PE) by considering Grade III preterm placental calcification (PPC) and excessive weight gain (≧10kgw) at 28weeks gestation. METHODS: At a tertiary teaching hospital, obstetric ultrasonography was performed at 28weeks gestation to establish a diagnosis of grade III PPC. Weight gain during pregnancy was recorded at the same time...
October 2017: Pregnancy Hypertension
https://www.readbyqxmd.com/read/29153366/papillary-glioneuronal-tumors-a-radiopathologic-correlation
#16
Nishtha Yadav, Shilpa Rao, Jitender Saini, Chandrajit Prasad, Anita Mahadevan, Nishanth Sadashiva
OBJECTIVE: Papillary glioneuronal tumors (PGNT) are a rare and recently recognized tumor entity. The neuroimaging findings were reviewed to determine if any specific findings emerge to assist a preoperative diagnosis of PGNT. MATERIALS AND METHODS: Seven histologically confirmed cases of PGNT were evaluated from 2004 to 2014. Clinical, neuroimaging and histological findings were reviewed and tabulated. RESULTS: Headache and seizures were observed in 4 patients (57...
December 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/29153360/magnetic-resonance-imaging-of-intracranial-atherosclerosis-comparison-of-ex-vivo-3t-mri-and-histologic-findings
#17
Gyung Ho Chung, Hyo Sung Kwak, Seung Bae Hwang, Sang Jae Noh
PURPOSE: Imaging the lipid-rich necrotic core (LRNC) is very important when evaluating the response of lipid-lowering therapy. The purpose of this study was to assess ex vivo LRNC of intracranial atherosclerosis using 3T MRI. MATERIALS AND METHODS: Thirty-one atherosclerotic lesions from 17 specimens were analyzed (basilar artery=15, middle cerebral artery=16) using 3T MRI. Specimens were not chemically processed for imaging studies. Reconstructed MRI was matched with histologic sections at corresponding locations...
December 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/29153135/understanding-the-pathogenesis-of-vascular-calcification-%C3%A2-timing-is-everything
#18
W Charles O'Neill
A number of histologic changes are associated with the medial arterial calcification that occurs in chronic kidney disease, leading to several different hypotheses concerning the underlying mechanism. Careful timing of these changes in relation to the onset of the calcification, as reported in this issue of the journal, can shed light on which changes are pathogenic as opposed to secondary in reaction to the calcification.
December 2017: Kidney International
https://www.readbyqxmd.com/read/29152996/birth-defects-associated-with-congenital-zika-virus-infection-in-mexico
#19
Silvina Noemí Contreras-Capetillo, Nina Valadéz-González, Pablo Manrique-Saide, Rafael Eduardo Carcaño-Castillo, Freddy Pacheco-Tugores, Hirian Alonso Moshe Barrera-Pérez, Doris Pinto-Escalante, Manuel Lliteras-Cardín, José Alfredo Hoil-Parra, José Luis Cáceres-Solís, Norma Pavía-Ruz
Part of the work agenda of international health authorities is to define the clinical spectrum of the congenital Zika syndrome (CZS) in different territories. We describe the clinical variability that gave rise to the suspicion of CZS in 3 newborn patients in the south of Mexico with active transmission of Zika. All of them presented Zika RNA by reverse transcription-polymerase chain reaction and positive antibodies for IgM by enzyme-linked immunosorbent assay. None of the mothers tested positive for active viremia, only one mother had Zika-symptoms and titers of Zika-positive IgM...
November 1, 2017: Clinical Pediatrics
https://www.readbyqxmd.com/read/29152850/estimation-of-minimal-disease-prevalence-from-population-genomic-data-application-to-primary-familial-brain-calcification
#20
Gaël Nicolas, Camille Charbonnier, Dominique Campion, Joris A Veltman
Primary Familial Brain Calcification (PFBC) is a rare calcifying disorder of the brain with autosomal dominant inheritance, of unknown prevalence. Four causal genes have been identified so far: SLC20A2, PDGFB, PDGFRB, and XPR1, with pathogenic, probably pathogenic or missense variants of unknown significance found in 27.7% probands in the French PFBC series. Estimating PFBC prevalence from a clinical input is arduous due to a large diversity of symptoms and ages of onset and to incomplete clinical penetrance...
November 20, 2017: American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics
keyword
keyword
6520
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"