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https://www.readbyqxmd.com/read/27936420/myofibroblastoma-of-the-male-breast-a-rare-entity-with-radiologic-pathologic-correlation
#1
John D Comer, Xiaoyan Cui, Carolyn Sharyn Eisen, Genevieve Abbey, Elizabeth Kagan Arleo
A 73-year old man with a history of multiple genitourinary malignancies was found to have a left retroareolar soft tissue mass on CT assessment of disease, and dedicated breast imaging was recommended. Diagnostic mammography and ultrasonography confirmed a solid mass, for which biopsy was recommended. Pathologic analysis demonstrated a spindle cell neoplasm with an immunoreactivity pattern consistent with myofibroblastoma. While this entity is benign, nonspecific imaging features necessitate tissue sampling for pathologic diagnosis, and, given pathologic rarity, open communication between the radiologist and pathologist is important to establish the correct diagnosis and to recommend appropriate management...
November 30, 2016: Clinical Imaging
https://www.readbyqxmd.com/read/27936106/feasibility-of-10-minute-delayed-hepatocyte-phase-imaging-using-a-30%C3%A2-flip-angle-in-gd-eob-dtpa-enhanced-liver-mri-for-the-detection-of-hepatocellular-carcinoma-in-patients-with-chronic-hepatitis-or-cirrhosis
#2
Inhwan Jeon, Eun-Suk Cho, Joo Hee Kim, Dae Jung Kim, Jeong-Sik Yu, Jae-Joon Chung
OBJECTIVES: To compare 10-minute (min) delayed hepatocyte phase imaging (HPI) using a 30° flip angle (FA) (10m-FA30) and 20-min delayed HPI using a 10° FA (20m-FA10) or 30° FA (20m-FA30) in Gd-EOB-DTPA-enhanced MRI in patients with chronic hepatitis or cirrhosis, in terms of lesion-to-liver contrast-to-noise ratio (CNR) for hepatocellular carcinoma (HCC) and detection sensitivity for focal hepatic lesions (FHLs). MATERIALS AND METHODS: One hundred and four patients with 168 HCCs and 55 benign FHLs who underwent Gd-EOB-DTPA-enhanced MRI with 10m-FA30, 20m-FA10, and 20m-FA30 were enrolled...
2016: PloS One
https://www.readbyqxmd.com/read/27935997/endoplasmic-reticulum-targeted-subunit-toxins-provide-a-new-approach-to-rescue-misfolded-mutant-proteins-and-revert-cell-models-of-genetic-diseases
#3
Humaira Adnan, Zhenbo Zhang, Hyun-Joo Park, Chetankumar Tailor, Clare Che, Mustafa Kamani, George Spitalny, Beth Binnington, Clifford Lingwood
Many germ line diseases stem from a relatively minor disturbance in mutant protein endoplasmic reticulum (ER) 3D assembly. Chaperones are recruited which, on failure to correct folding, sort the mutant for retrotranslocation and cytosolic proteasomal degradation (ER-associated degradation-ERAD), to initiate/exacerbate deficiency-disease symptoms. Several bacterial (and plant) subunit toxins, retrograde transport to the ER after initial cell surface receptor binding/internalization. The A subunit has evolved to mimic a misfolded protein and hijack the ERAD membrane translocon (dislocon), to effect cytosolic access and cytopathology...
2016: PloS One
https://www.readbyqxmd.com/read/27935928/myomectomy-revisited-experiences-in-a-teaching-hospital
#4
S Subedi, M Chhetry, S Lamichhane
INTRODUCTION: Uterine myomas are the most common benign tumors of the female reproductive tract with myomectomy being one of the major modalities of the treatment in our set up. The aim of this study was to share the experiences of open myomectomy from a Teaching Hospital. METHODS: A observational study was conducted from a records of myomectomy cases in the department of Obstetrics and Gynaecology at Nobel Medical College teaching Hospital from June 2014- May 2016...
April 2016: JNMA; Journal of the Nepal Medical Association
https://www.readbyqxmd.com/read/27935922/maxillary-calcifying-epithelial-odontogenic-tumour
#5
S Acharya, N Prusty, C Naik, K Kumar
The calcifying epithelial odontogenic tumor is a benign, locally invasive, slow-growing neoplasm occurring as intraosseous (94%) and extraosseous (6%) variants and with a frequency of 1-2%. Extraosseous variant is diagnosed slightly earlier than the intraosseous type. The intraosseous CEOT shows a maxilla:mandible site ratio of 1:2 and are mainly located in the premolar/molar region. Histologically, the CEOT is characterized by the occurrence of sheets, nests and masses of polyhedral, eosinophilic epithelial cells which may show cellular abnormalities including giant cell formation and nuclear pleomorphism...
July 2016: JNMA; Journal of the Nepal Medical Association
https://www.readbyqxmd.com/read/27935919/hysteroscopy-in-abnormal-uterine-bleeding-vs-ultrasonography-and-histopathology-report-in-perimenopausal-and-postmenopausal-women
#6
J Sharma, S Tiwari
INTRODUCTION: Abnormal uterine bleeding is one of the most common morbidity landing women to attend medical attention in gynecology outpatient department. This study aims to evaluate the hysteroscopy finding in diagnosis of AUB and its correlation with ultrasonography finding and histopathological reports. METHODS: This was a prospective comparative study in which ultrasonography was performed in fifty patients with abnormal uterine bleeding attending OPD then hysteroscopy was performed...
July 2016: JNMA; Journal of the Nepal Medical Association
https://www.readbyqxmd.com/read/27935841/the-cytoplasmic-tail-domain-of-epstein-barr-virus-gh-regulates-membrane-fusion-activity-through-altering-gh-binding-to-gp42-and-epithelial-cell-attachment
#7
Jia Chen, Theodore S Jardetzky, Richard Longnecker
: Epstein-Barr virus (EBV) is associated with infectious mononucleosis and a variety of cancers as well as lymphoproliferative disorders in immunocompromised patients. EBV mediates viral entry into epithelial and B cells using fusion machinery composed of four glycoproteins: gB, the gH/gL complex, and gp42. gB and gH/gL are required for both epithelial and B cell fusion. The specific role of gH/gL in fusion has been the most elusive among the required herpesvirus entry glycoproteins. Previous mutational studies have focused on the ectodomain of EBV gH and not on the gH cytoplasmic tail domain (CTD)...
November 15, 2016: MBio
https://www.readbyqxmd.com/read/27935835/robust-extracellular-ph-modulation-by-candida-albicans-during-growth-in-carboxylic-acids
#8
Heather A Danhof, Slavena Vylkova, Elisa M Vesely, Amy E Ford, Manuel Gonzalez-Garay, Michael C Lorenz
: The opportunistic fungal pathogen Candida albicans thrives within diverse niches in the mammalian host. Among the adaptations that underlie this fitness is an ability to utilize a wide array of nutrients, especially sources of carbon that are disfavored by many other fungi; this contributes to its ability to survive interactions with the phagocytes that serve as key barriers against disseminated infections. We have reported that C. albicans generates ammonia as a byproduct of amino acid catabolism to neutralize the acidic phagolysosome and promote hyphal morphogenesis in a manner dependent on the Stp2 transcription factor...
November 15, 2016: MBio
https://www.readbyqxmd.com/read/27935819/a-novel-brain-tumour-model-in-zebrafish-reveals-the-role-of-yap-activation-in-mapk-pi3k-induced-malignant-growth
#9
Marie Mayrhofer, Victor Gourain, Markus Reischl, Pierre Affaticati, Arnim Jenett, Jean-Stephane Joly, Matteo Benelli, Francesca Demichelis, Pietro Luigi Poliani, Dirk Sieger, Marina Mione
Somatic mutations activating MAPK/PI3K signalling play a pivotal role in both tumours and brain developmental disorders. We developed a zebrafish model of brain tumour based on somatic expression of oncogenes that activate MAPK/PI3K signalling in neural progenitor cells. HRAS(V12) was the most effective in inducing both heterotopia and invasive tumours. Tumours, but not heterotopias, require persistent activation of phospho‑(p)ERK and express a gene signature similar to the mesenchymal glioblastoma subtype, with a strong YAP component...
November 24, 2016: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/27935740/assessment-of-port-specific-pain-after-gynecological-laparoscopy-a-prospective-cohort-clinical-trial
#10
Qianqian Wang, Lu Huang, Wenjie Zeng, Lifeng Chen, Xiaofeng Zhao
OBJECTIVE: To determine the association between pain related to laparoscopic port sites and different incision sizes after gynecological laparoscopy. DESIGN: Prospective, cohort trial Canadian Task Force classification 2-II. SETTING: Zhejiang Provincial People's Hospital, China. PATIENTS: Two hundred patients who underwent three-port laparoscopic gynecological procedures for benign indications. INTERVENTIONS: In total, 200 patients underwent laparoscopic gynecological procedures...
December 9, 2016: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/27935335/pediatric-chondromyxoid-fibroma-like-osteosarcoma
#11
Matthew Stark, Stephen D Heinrich, Raju Sivashanmugam, Dane Mackey, Ewa Wasilewska, Randall Craver
Chondromyxoid fibroma-like osteosarcoma (CMF-OS) is a low-grade osteosarcoma, often misdiagnosed on initial biopsy as a benign lesion, with five cases previously described. We report a 13-year-old male with an intramedullary lytic CMF-OS of the right tibial proximal metaphysis with cortical destruction and soft tissue extension. Diagnosis was based on malignant new bone formation, increased mitotic figures, lamellar bone permeation with bony destruction, and correlation with imaging studies. There were no metastasis at presentation and the tumor showed good response to standard chemotherapy with >95% necrosis...
December 9, 2016: Fetal and Pediatric Pathology
https://www.readbyqxmd.com/read/27934790/abdomino-endoscopic-perineal-excision-of-the-rectum-for-benign-and-malignant-pathology-technique-considerations-for-true-transperineal-verus-transanal-total-mesorectal-excision-endoscopic-proctectomy
#12
Hazar Al Furajii, Niall Kennedy, Ronan A Cahill
PURPOSE: Transanal minimally invasive surgery using single port instrumentation is now well described for the performance of total mesorectal excision with restorative colorectal/anal anastomosis most-often in conjunction with transabdominal multiport assistance. While non-restorative abdomino-endoscopic perineal excision of the anorectum is conceptually similar, it has been less detailed in the literature. METHODS: Consecutive patients undergoing non-restorative ano-proctectomy including a transperineal endoscopic component were analysed...
January 2017: Journal of Minimal Access Surgery
https://www.readbyqxmd.com/read/27934448/n-acylsaccharins-as-amide-based-arylating-reagents-via-chemoselective-n-c-cleavage-pd-catalyzed-decarbonylative-heck-reaction
#13
Chengwei Liu, Guangrong Meng, Michal Szostak
Palladium-catalyzed decarbonylative Heck reaction of amides by chemoselective N-C activation using N-acylsaccharins as coupling partners has been accomplished. These studies represent only the second example of amide-Heck reactions reported to date. A broad range of electronically diverse amide and olefin coupling partners is amenable to this transformation. Orthogonal site-selective Heck cross-couplings by C-Br/N-C cleavage and mechanistic studies are reported. This report introduces readily available, bench-stable, cheap, and benign N-acylsaccharins as aryl transfer reagents to access versatile aryl-metal intermediates...
December 2, 2016: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/27934389/practical-cross-coupling-between-o-based-electrophiles-and-aryl-bromides-via-ni-catalysis
#14
Zhi-Chao Cao, Qin-Yu Luo, Zhang-Jie Shi
Cross-coupling of various O-based electrophiles with aryl bromides was developed through Ni-catalyzed C-O activation in the presence of magnesium. Beside carboxylates, carbamates, and ethers, phenols exhibited excellent reactivity under modified conditions. This chemistry was featured as a simple and environmentally benign process with low catalyst loading and easy manipulations. The method exhibited broad substrate scopes.
December 2, 2016: Organic Letters
https://www.readbyqxmd.com/read/27934004/sustainable-synthesis-of-quinolines-and-pyrimidines-catalyzed-by-manganese-pnp-pincer-complexes
#15
Matthias Mastalir, Mathias Glatz, Ernst Pittenauer, Günter Allmaier, Karl Kirchner
This study represents the first example an environmentally benign, sustainable, and practical synthesis of substituted quinolines and pyrimidines using combinations of 2-aminobenzyl alcohols and alcohols as well as benzamidine and two different alcohols, respectively. These reactions proceed with high atom efficiency via a sequence of dehydrogenation and condensation steps that give rise to selective C-C and C-N bond formations, thereby releasing 2 equiv of hydrogen and water. A hydride Mn(I) PNP pincer complex recently developed in our laboratory catalyzes this process in a very efficient way...
December 7, 2016: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/27933614/antiviral-agents-for-infectious-mononucleosis-glandular-fever
#16
REVIEW
Muireann De Paor, Kirsty O'Brien, Tom Fahey, Susan M Smith
BACKGROUND: Infectious mononucleosis (IM) is a clinical syndrome, usually caused by the Epstein Barr virus (EPV), characterised by lymphadenopathy, fever and sore throat. Most cases of symptomatic IM occur in older teenagers or young adults. Usually IM is a benign self-limiting illness and requires only symptomatic treatment. However, occasionally the disease course can be complicated or prolonged and lead to decreased productivity in terms of school or work. Antiviral medications have been used to treat IM, but the use of antivirals for IM is controversial...
December 8, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27933384/thyroid-autoimmunity-is-really-associated-with-papillary-thyroid-carcinoma
#17
Alev Selek, Berrin Cetinarslan, Ilhan Tarkun, Zeynep Canturk, Berna Ustuner, Zeynep Akyay
The incidence of thyroid cancer has been greatly increasing. Several studies aimed to investigate biomarkers for prediction of thyroid cancer. Some of these studies have suggested that thyroid autoantibodies (TAb) could be used as predictors of thyroid cancer risk, but the correlation between TAb and PTC is still a matter of debate. The aim of this study is to evaluate thyroid autoimmunity and TAbs in patients with PTC and benign multinodular goiter (MNG) to investigate if TAbs and autoimmune thyroid disease (ATD) could predict thyroid malignancy...
December 8, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27933378/a-train-track-technique-in-anatomic-reconstruction-of-svc-bifurcation-complicated-by-cardiac-tamponade-an-introspection
#18
Karunakaravel Karuppasamy, Mohammed Al-Natour, Ram Kishore Gurajala
This report describes a stenting technique used to anatomically reconstruct superior vena cava (SVC) bifurcation in a patient with benign SVC syndrome. After recanalizing the SVC bifurcation, we exchanged two 0.035-in. wires for two 0.018-in. wires, deployed the SVC stent over these two wires ("train-track" technique), and stented each innominate vein over one wire. However, our decisions to recanalize both innominate veins, use the "buddy-wire" technique for SVC dilation, and dilate the SVC to 16 mm before stent deployment likely contributed to SVC tear, which was managed by resuscitation, SVC stent placement, and pericardial drainage...
December 8, 2016: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/27933138/treatment-options-for-spontaneous-and-postoperative-sclerosing-mesenteritis
#19
Jennifer Klasen, Ulrich Güller, Brigitte Muff, Daniel Candinas, Christian A Seiler, René Fahrner
Sclerosing mesenteritis is a rare pathology with only a few described cases in the literature. The etiology is unclear; however, several potential triggers, including abdominal surgery and abdominal trauma, have been discussed. The pathology includes a benign acute or chronic inflammatory process affecting the adipose tissue of the mesenterium. Despite it being a rare disease, sclerosing mesenteritis is an important differential diagnosis in patients after abdominal surgery or patients presenting spontaneously with signs of acute inflammation and abdominal pain...
November 27, 2016: World Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/27933106/screening-detected-rheumatic-heart-disease-can-progress-to-severe-disease
#20
Daniel Engelman, Gavin R Wheaton, Reapi L Mataika, Joseph H Kado, Samantha M Colquhoun, Bo Remenyi, Andrew C Steer
OBJECTIVES: Echocardiography is a sensitive test for rheumatic heart disease (RHD) screening; however the natural history of RHD detected on screening has not been established. We aimed to evaluate the progression of screening-detected RHD in Fiji. METHODS: All young people previously diagnosed with RHD through screening, with echocardiograms available for review, were eligible. All baseline echocardiograms were reported again. Participants underwent follow-up echocardiography...
2016: Heart Asia
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