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https://www.readbyqxmd.com/read/28528058/metachronous-germ-cell-tumors-of-the-mediastinum
#1
Shuhei Hakiri, Koji Kawaguchi, Takayuki Fukui, Koichi Fukumoto, Shota Nakamura, Kohei Yokoi
We report a rare case of mediastinal nonseminomatous germ cell tumor arising after 2 complete resections of mediastinal mature teratomas 18 and 10 years prior. After three cycles of chemotherapy for the mediastinal nonseminomatous germ cell tumor, the serum α-fetoprotein and β-human chorionic gonadotropin levels were normalized. However, chest radiography revealed that the mediastinal tumor had remarkably increased in size, and thus growing teratoma syndrome was diagnosed. The patient underwent urgent resection of the tumor, and a pathologic examination showed an encapsulated mature teratoma without any malignant viable cells...
June 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28527842/diagnostic-accuracy-of-periapical-radiography-and-cone-beam-computed-tomography-in-identifying-root-canal-configuration-of-human-premolars
#2
Thiago Oliveira Sousa, Francisco Haiter-Neto, Eduarda Helena Leandro Nascimento, Leonardo Vieira Peroni, Deborah Queiroz Freitas, Bassam Hassan
INTRODUCTION: The aim of this study was to assess the diagnostic accuracy of periapical radiography (PR) and cone-beam computed tomographic (CBCT) imaging in the detection of the root canal configuration (RCC) of human premolars. METHODS: PR and CBCT imaging of 114 extracted human premolars were evaluated by 2 oral radiologists. RCC was recorded according to Vertucci's classification. Micro-computed tomographic imaging served as the gold standard to determine RCC...
May 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28527155/status-of-laparoscopic-sleeve-gastrectomy-in-china-a-national-survey
#3
Shibo Lin, Wei Guan, Pankaj Hans, Hui Liang
BACKGROUND: Laparoscopic sleeve gastrectomy (LSG) is a favorable bariatric procedure. This study evaluated the status of LSG in China. METHODS: During the 4(th) International Forum of Bariatric and Metabolic Surgery in May 2016, Nanjing China, an on-the-spot questionnaire was filled out by 105 attending surgeons with experience of LSG. The feedback data was collected and analyzed. RESULTS: For preoperative preparations, surgeons preferred blood glucose control with insulin (61...
May 19, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28526835/large-field-of-view-fast-and-low-dose-multimodal-phase-contrast%C3%A2-imaging-at-high-x-ray-energy
#4
Alberto Astolfo, Marco Endrizzi, Fabio A Vittoria, Paul C Diemoz, Benjamin Price, Ian Haig, Alessandro Olivo
X-ray phase contrast imaging (XPCI) is an innovative imaging technique which extends the contrast capabilities of 'conventional' absorption based x-ray systems. However, so far all XPCI implementations have suffered from one or more of the following limitations: low x-ray energies, small field of view (FOV) and long acquisition times. Those limitations relegated XPCI to a 'research-only' technique with an uncertain future in terms of large scale, high impact applications. We recently succeeded in designing, realizing and testing an XPCI system, which achieves significant steps toward simultaneously overcoming these limitations...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28525482/artificial-cervical-disk-replacement-for-the-treatment-of-adjacent-segment-disease-after-anterior-cervical-decompression-and-fusion
#5
Sheng Bin, Huang Xiangwang, Xiao Sheng, Xiang Tiecheng, Liu Xiangyang, Zhang Yi, Liu Bin
STUDY DESIGN: Retrospective study. OBJECTIVE: To evaluate the outcome of artificial cervical disk replacement (ACDR) for the treatment of adjacent segment disease (ASD) after anterior cervical decompression and fusion (ACDF). SUMMARY OF BACKGROUND DATA: ACDF is the useful procedure for degenerative cervical diseases. However, studies have reported accelerated degeneration of functional spinal units adjacent to the fusion site after ACDF. MATERIALS AND METHODS: Between January 2004 and January 2011, 32 inpatients (18 male, 14 female; age, 38-61 y; mean, 48 y) underwent ACDR for the treatment of ASD after previous ACDF (single-level: n=12; 2-level: n=15; 3-level: n=5)...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28525454/bilateral-tibial-osteofibrous-dysplasia-on-18f-fdg-pet-ct
#6
Hiroaki Nagano, Megumi Jinguji, Masanori Nakajo, Michiyo Higashi, Takashi Yoshiura
A 17-year-old girl had pain in the right front lower leg while road racing 2 months earlier. Radiography and CT showed osteolytic lesions in the medial part of the bilateral tibia. Bone scintigraphy showed focally increased radiotracer uptake in the bilateral tibia. The lesions showed hypermetabolism on FDG PET/CT. Osteofibrous dysplasia was suspected from the radiographic findings, but adamantinoma or metastases could not be excluded. Surgical biopsies were performed, and histopathologic studies confirmed the diagnosis of bilateral osteofibrous dysplasia...
May 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28523317/mri-as-indicator-of-pulmonary-tuberculosis-activity-from-morphological-to-molecular-level-assessment-a-case-report
#7
Maria Teodora Antuaneta Buzan, Hanelore Herta, Mihaela Maria Coman, Daniela Homorodean, Silviu Andrei Sfrângeu, Carmen Monica Pop
We present the case of an adult patient with active post-primary pulmonary tuberculosis (TB) and discuss specific morphological and textural aspects found at high-field magnetic resonance imaging (MRI) of the lung. The 42-year-old man, heavy smoker, undertook a routine employment medical examination and was admitted to a referral pulmonology and TB center due to the abnormal findings seen on his chest radiography. The patient presented nonspecific symptoms, bilateral bronchial breath at pulmonary auscultation, inflammatory syndrome on the laboratory blood tests and positive sputum smears for acid-fast bacilli, which together with the typical aspect on the chest radiography lead to a diagnosis of post-primary pulmonary TB and administration of specific medication...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28523308/radiological-and-optical-coherence-tomography-aspects-in-external-root-resorption
#8
Sanda Mihaela Popescu, Veronica MercuŢ, Monica Scrieciu, Răzvan MercuŢ, Florin Dan Popescu, Adina Monica Chiriac, Monica Mihaela CrăiŢoiu, Eugen Osiac
Pathological external root resorption is a process by which the hard tooth substance is lost because of action of different local irritative or systemic factors. Six forms of external root resorption are described: surface external root resorption, inflammatory external root resorption, replacement external root resorption, invasive external cervical root resorption, ankylosis and transient apical breakdown. The objective of the study was to establish the prevalence of the pathological root resorption in a retrospective radiological study, to highlight radiological aspects of external root resorption and to describe optical coherence tomography (OCT) aspects in pathological root resorption...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28523179/a-case-of-video-assisted-thoracoscopic-resection-of-malignant-transformation-of-pulmonary-recurrent-respiratory-papillomatosis
#9
Dana A Dominguez, David T Martin, Jeffrey B Velotta
Recurrent respiratory papillomatosis (RRP) is a disease of the respiratory tract caused by infection with the human papillomavirus (HPV) and is characterized by multiple recurring papillomas throughout the respiratory tract. Although rare, extra laryngeal involvement carries the risk of malignant transformation in 3-7% of adults. We report the case of a patient with unmonitored juvenile onset RRP with pulmonary involvement found to have malignant transformation to squamous cell carcinoma (SCC). Incidentally found on chest radiography for mild chest wall trauma, she was found to have a large left lower lobe mass with pathology consistent with SCC...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28523170/a-comparison-of-longitudinal-and-transverse-approaches-to-ultrasound-guided-axillary-vein-cannulation-by-experienced-operators
#10
Yi-Zhou He, Ming Zhong, Wei Wu, Jie-Qiong Song, Du-Ming Zhu
BACKGROUND: The axillary vein is an easily accessible vessel that can be used for ultrasound-guided central vascular access and offers an alternative to the internal jugular and subclavian veins. The objective of this study was to identify which transducer orientation, longitudinal or transverse, is better for imaging the axillary vein with ultrasound. METHODS: We analyzed 236 patients who had undergone central venous cannulation of axillary vein in this retrospective study...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28521909/proximal-interphalangeal-joint-ankylosis-in-an-early-medieval-horse-from-wroc%C3%A5-aw-cathedral-island-poland
#11
Maciej Janeczek, Aleksander Chrószcz, Vedat Onar, Radomir Henklewski, Aleksandra Skalec
Animal remains that are unearthed during archaeological excavations often provide useful information about socio-cultural context, including human habits, beliefs, and ancestral relationships. In this report, we present pathologically altered equine first and second phalanges from an 11th century specimen that was excavated at Wrocław Cathedral Island, Poland. The results of gross examination, radiography, and computed tomography, indicate osteoarthritis of the proximal interphalangeal joint, with partial ankylosis...
June 2017: International Journal of Paleopathology
https://www.readbyqxmd.com/read/28521786/role-of-routine-abdominal-ultrasonography-in-intensified-tuberculosis-case-finding-algorithms-at-hiv-clinics-in-high-tb-burden-settings
#12
Sonam Spalgais, Upasna Agarwal, Rohit Sarin, Devesh Chauhan, Anita Yadav, Anand Jaiswal
BACKGROUND: High proportion of TB in people living with HIV (PLHIV) is undiagnosed. Due to this active TB case finding is recommended for HIV clinics in high TB burden countries. Presently sputum examination and chest radiography are frontline tests recommended for HIV infected TB presumptives. Abdominal TB which occurs frequently in PLHIV may be missed even by existing programmatic intensified case finding protocols. This study evaluated the routine use of ultrasonography (USG) for active case finding of abdominal TB in HIV clinics...
May 18, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28520812/the-effect-of-platelet-rich-plasma-on-osseous-healing-in-dogs-undergoing-high-tibial-osteotomy
#13
Samuel P Franklin, Emily E Burke, Shannon P Holmes
OBJECTIVES: The purpose of this study was to investigate whether platelet-rich plasma (PRP) enhances osseous healing in conjunction with a high tibial osteotomy in dogs. STUDY DESIGN: Randomized controlled trial. METHODS: Sixty-four client-owned pet dogs with naturally occurring rupture of the anterior cruciate ligament and that were to be treated with a high tibial osteotomy (tibial plateau leveling osteotomy) were randomized into the treatment or control group...
2017: PloS One
https://www.readbyqxmd.com/read/28520655/effectiveness-of-intracavitary-electrocardiogram-guidance-in-peripherally-inserted-central-catheter-tip-placement-in-neonates
#14
Lianjuan Zhou, Hongzhen Xu, Jianfeng Liang, Meifang Xu, Jun Yu
Correct tip location is crucial for a peripherally inserted central catheter (PICC) to maximize the effects of central venous infusion. However, it is difficult to place the tip in a correct location in neonates because of the unreliable estimated length by surface landmark. Therefore, we evaluated the feasibility and safety of an improved intracavitary electrocardiogram (IC-ECG) technique in guiding PICC placement in neonates based on the ratios of P/R wave amplitudes on IC-ECG. The results showed that all of the 32 neonates whose PICCs had been successfully placed and correct tip position verified by chest radiography acquired qualified P wave on IC-ECG...
May 17, 2017: Journal of Perinatal & Neonatal Nursing
https://www.readbyqxmd.com/read/28516403/long-term-clinical-outcome-of-spinal-langerhans-cell-histiocytosis-in-children
#15
Seong Wook Lee, Hyery Kim, Jin Kyung Suh, Kyung-Nam Koh, Ho Joon Im, Hee Mang Yoon, Jong Jin Seo
Spinal involvement of Langerhans cell histiocytosis (LCH) affects morbidity, but outcomes are not well understood. We analyzed long-term outcomes following uniform treatment at a single institution. Clinical characteristics and outcomes of spinal LCH patients were retrospectively analyzed. Height ratios were calculated using the anterior height of the involved vertebral body on magnetic resonance imaging (MRI) and the expected normal vertebral height. Twenty-two (22.4%) of 98 patients diagnosed with LCH had spinal involvement...
May 17, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28515765/preparation-and-in-vitro-in-vivo-evaluation-of-acyclovir-floating-tablets
#16
Rahim Bahri-Najafi, Abolfazl Mostafavi, Naser Tavakoli, Somayeh Taymouri, Mohammad-Mehdi Shahraki
In the current study, floating dosage form containing acyclovir was developed to increase its oral bioavailability. Effervescent floating tablets containing 200 mg acyclovir were prepared by direct compression method with three different rate controlling polymers including Hydroxypropyl methylcellulose K4M, Carbapol 934, and Polyvinylpyrrolidone. Optimized formulation showed good floating properties and in vitro drug release characteristics with mean dissolution time and dissolution efficacy of about 4.76 h and 54...
April 2017: Research in Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28514364/-radiodiagnostics-of-odontogenic-maxillary-sinusitis
#17
N S Serova, E V Evseeva
The objective of the present study was to analyze the potential of such techniques as X-ray, multi-slice computed tomography (MSCT), and cone-beam computed tomography (CBCT) for diagnostics of odontogenic maxillary sinusitis. The secondary objective was to describe changes in maxillary sinuses identifiable with the help of the above methods. The study included 166 patients at the age varying from 21 to 81 years presenting with odontogenic maxillary sinusitis. All of them underwent the roentgenological examination...
2017: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/28512493/radiographic-quality-of-root-canal-obturation-performed-by-fifth-year-students-of-hamadan-dental-school
#18
Amir Eskandarloo, Hamed Karkehabadi, Seyedeh Zeinab Hoseini Hashemi, Masoumeh Ahmadi, Seyedeh Sareh Hendi
INTRODUCTION: The aim of this study was to assess the radiographic technical quality of root canal therapy performed by fifth year students of Dental School of Hamadan University of Medical Sciences from 2015 to 2016. METHODS AND MATERIALS: Four hundred and seventy records of root canal therapies were evaluated. Records with graphies taken as initial, master apical file (MAF), master apical cone (MAC) and final radiographs were included in the study and records of patient younger than 16 years and older than 68 years were excluded from further investigations...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28512481/influence-of-root-canal-curvature-on-the-accuracy-of-root-zx-electronic-foramen-locator-an-in-vitro-study
#19
Masoud Saatchi, Shiva Iravani, Mehrdad Akhavan Khaleghi, Amin Mortaheb
INTRODUCTION: The aim of this in vitro study was to evaluate the correlation between accuracy of Root ZX electronic foramen locator and root canal curvature. METHODS AND MATERIALS: One hundred and ten extracted mandibular molars were selected. Access cavity was prepared and coronal enlargement of mesiobuccal canal was performed. A #10 Flexofile was inserted into the mesiobuccal canal, and a radiography was taken to measure the degree of curvature by Schneider's method...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28511561/depression-of-the-maxillary-sinus-anterior-wall-and-its-influence-on-panoramic-radiography-appearance
#20
Kazuhito Yoshida, Motoki Fukuda, Kenichi Gotoh, Eiichiro Ariji
OBJECTIVES: To clarify the depression aspect of the maxillary sinus anterior wall, and to investigate its relationship with the panoramic image appearance of a diagonal line from the inferior part of the so-called panoramic innominate line to the medial portion of the orbital floor line. METHODS: Based on computed tomographic (CT) data, panoramic images were simulated for two typical cases with and without anterior wall depression. Next, on axial CT images of 1689 subjects (3378 sinuses) stored in our image database, the wall depths were measured and analyzed for their relationships with the panoramic appearances of the diagonal line, classified into invisible, obscure, and clear patterns...
May 16, 2017: Dento Maxillo Facial Radiology
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