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Imaging of pneumonia

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https://www.readbyqxmd.com/read/28643722/endogenous-endophthalmitis-caused-by-cryptococcus-neoformans-var-gattii-mimicking-choroidal-tumor-from-positron-emission-tomography-computed-tomography-to-histopathology
#1
Chun-Ju Lin, Wen-Lu Chen, Jane-Ming Lin, Peng-Tai Tien, Yi-Yu Tsai
A 60-year-old immunocompetent female with pneumonia history about 10 years ago suffered from blurred vision overall survival for 3 weeks. Common cold with headache and unintentional body weight loss was also noted recently. Choroidal detachment simulating choroidal tumor was observed in the temporal quadrant. The 18F-fluoro-2-deoxyglucose (FDG) positron-emission tomography/computed tomography (CT) scan showed focal, mild to moderate FDG uptake in the left lateral orbit, and an enhanced lesion was seen on the recent CT scan...
June 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28635204/esophago-pulmonary-fistula-manifesting-as-recurrent-pneumonias-and-migrating-mediastinal-calcifications
#2
Jadd Kebbe, Sai Yendamuri, Charles Roche, Kassem Harris, Samjot Singh Dhillon
A 43-year old man presented with recurrent pneumonias, episodes of hemoptysis and an enlarging right lower lobe mass. A clear diagnosis was not previously established in spite of multiple radiological evaluations and biopsies. Meticulous review of his CT imaging showed that he had subcarinal calcification on his prior CT scans, which had decreased in size and now multiple new small areas of calcifications were seen in the right lower lobe lesion. An esophago-pulmonary fistula due to migration of mediastinal calcifications was suspected which was identified on careful review of the CT chest and confirmed by esophagogastroduodenoscopy...
May 18, 2017: Monaldi Archives for Chest Disease, Archivio Monaldi Per le Malattie del Torace
https://www.readbyqxmd.com/read/28629573/added-value-of-prone-ct-in-the-assessment-of-honeycombing-and-classification-of-usual-interstitial-pneumonia-pattern
#3
Minjae Kim, Sang Min Lee, Jae-Woo Song, Kyung-Hyun Do, Hyun Joo Lee, Soyeoun Lim, Jooae Choe, Kye Jin Park, Hyo Jung Park, Hwa Jung Kim, Joon Beom Seo
OBJECTIVE: To retrospectively investigate whether prone CT improves identification of honeycombing and classification of UIP patterns in terms of interobserver agreement and accuracy using pathological results as a reference standard. MATERIALS AND METHODS: Institutional review board approval with waiver of patients' informed consent requirement was obtained. HRCTs of 86 patients with pathologically proven UIP, NSIP and chronic HP between January 2011 and April 2015 were evaluated by 8 observers...
June 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28626910/intravenous-and-intracavitary-use-of-contrast-enhanced-ultrasound-in-the-evaluation-and-management-of-complicated-pediatric-pneumonia
#4
Annamaria Deganello, Vasileios Rafailidis, Maria E Sellars, Aikaterini Ntoulia, Kleanthi Kalogerakou, Gary Ruiz, David O Cosgrove, Paul S Sidhu
Pediatric pneumonia can be complicated by necrotizing pneumonia or a parapneumonic effusion either in the form of an empyema or a clear effusion. Ultrasonography (US) and computed tomography represent well-established modalities for evaluation of complicated pediatric pneumonia. Contrast-enhanced ultrasound (CEUS) was recently introduced and is gaining increasing acceptance in pediatric imaging. In this case series, we present our initial experience with both intravenous and intracavitary use of CEUS in children with complicated pneumonia...
June 19, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28626631/chronic-eosinophilic-pneumonia-adjunctive-therapy-with-inhaled-steroids
#5
Christopher Chan, David DeLapp, Perry Nystrom
Idiopathic chronic eosinophilic pneumonia (ICEP) is a rare form of diffuse parenchymal lung disease first identified by Carrington et al. in 1969. It is characterized by the presence of constitutional and respiratory symptoms with associated peripheral opacities on imaging and elevated serum and/or bronchoalveolar eosinophilia. Although data is limited regarding etiology or prevalence, it is known that ICEP has a 2:1 female: male predominance and typically affects non-smokers. Diagnosis rests on the clinical constellation of respiratory symptoms of at least 2-4 weeks duration, the presence of diffuse pulmonary alveolar consolidation, classically described as the "photographic negative of pulmonary edema", the presence of eosinophils ≥40% on bronchoalveolar lavage or ≥1000/mm(3) eosinophils on peripheral blood and the exclusion of other known causes of eosinophilic lung diseases such as drugs, toxins, fungi, parasites, and collagen-vascular disorders...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28626182/small-cell-lung-cancer-in-a-20-year-old-non-smoking-man-with-systemic-sclerosis
#6
Go Saito, Torahiko Jinta, Hiroshi Nakaoka, Atsushi Kitamura, Kenichi Yamaguchi, Naoki Nishimura
Small cell lung cancer (SCLC) is a neuroendocrine tumor, and the median age of onset is about 70 years old. A 20-year-old non-smoking man with known systemic sclerosis presented with discomfort in his left chest. Chest X-ray showed a mass shadow in the left upper zone. A transbronchial lung biopsy revealed small cell carcinoma, and imaging studies reached the diagnosis of extensive disease small cell lung cancer. He had concurrent interstitial lung disease with a non-specific interstitial pneumonia pattern and anti-Scl-70 antibodies...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28614623/a-carbon-dot-based-fluorescent-nanosensor-for-simple-visualization-of-bacterial-nucleic-acids
#7
Ha Neul Lee, Jea-Sung Ryu, Cheong Shin, Hyun Jung Chung
A simple and facile method for sensing of nucleic acids is in great need for disease biomarker detection and diagnosis. Herein, a fluorescent nanosensor utilizing carbon dot nanoparticles is introduced that form visible precipitates in the presence of target DNA. Carbon dot nanoparticles are fabricated by microwave pyrolysis of polyethylenimine, which emits strong photoluminescence and can form precipitates when added to target DNA oligonucleotides. The precipitates can be easily visualized by UV illumination, and data can be acquired as images using a smartphone, which are analyzed for quantification...
June 14, 2017: Macromolecular Bioscience
https://www.readbyqxmd.com/read/28610670/lung-ultrasound-as-a-diagnostic-tool-for-radiographically-confirmed-pneumonia-in-low-resource-settings
#8
Laura E Ellington, Robert H Gilman, Miguel A Chavez, Farhan Pervaiz, Julio Marin-Concha, Patricia Compen-Chang, Stefan Riedel, Shalim J Rodriguez, Charlotte Gaydos, Justin Hardick, James M Tielsch, Mark Steinhoff, Jane Benson, Evelyn A May, Dante Figueroa-Quintanilla, William Checkley
BACKGROUND: Pneumonia is a leading cause of morbidity and mortality in children worldwide; however, its diagnosis can be challenging, especially in settings where skilled clinicians or standard imaging are unavailable. We sought to determine the diagnostic accuracy of lung ultrasound when compared to radiographically-confirmed clinical pediatric pneumonia. METHODS: Between January 2012 and September 2013, we consecutively enrolled children aged 2-59 months with primary respiratory complaints at the outpatient clinics, emergency department, and inpatient wards of the Instituto Nacional de Salud del Niño in Lima, Peru...
July 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28603413/identifying-the-heterogeneity-of-copd-by-v-p-spect-a-new-tool-for-improving-the-diagnosis-of-parenchymal-defects-and-grading-the-severity-of-small-airways-disease
#9
M Bajc, Y Chen, J Wang, X Y Li, W M Shen, C Z Wang, H Huang, A Lindqvist, X Y He
INTRODUCTION: Airway obstruction and possible concomitant pulmonary diseases in COPD cannot be identified conventionally with any single diagnostic tool. We aimed to diagnose and grade COPD severity and identify pulmonary comorbidities associated with COPD with ventilation/perfusion single-photon emission computed tomography (V/P SPECT) using Technegas as the functional ventilation imaging agent. METHODS: 94 COPD patients (aged 43-86 years, Global Initiative for Chronic Obstructive Lung Disease (GOLD) stages I-IV) were examined with V/P SPECT and spirometry...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28587422/application-of-vibration-response-imaging-technology-in-patients-with-community-acquired-pneumonia-before-and-after-the-treatment
#10
Hongying Jiang, Jichao Chen, Jinying Cao, Lan Mu, Zhenyu Hu, Jian He
The value of vibration response imaging (VRI) technology in patients with community-acquired pneumonia (CAP) was assessed. The VRI images of 62 cases of CAP patients with normal lung functions before and after treatment were observed and the changes in images before and after treatment were compared. The maximum vibration energy value of CAP patients was 1.64±0.32, patients with unsmoothed vibration energy curve accounted for 88.71%, 41 cases (66.12%) had unordered dynamic images, 56 cases (90.32%) jumping images, 54 cases (87...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28586113/lung-consolidation-locations-for-optimal-lung-ultrasound-scanning-in-diagnosing-pediatric-pneumonia
#11
Brendan H A Milliner, James W Tsung
OBJECTIVES: Lung ultrasound (US) has been shown to be accurate in diagnosing pneumonia in children. Evidence to inform an optimal scanning protocol is limited. Our objective is to describe an optimized lung US scanning protocol for pediatric pneumonia based on the anatomic location and transducer orientation. METHODS: We performed a secondary analysis of data and images from 2 prospective lung US studies for the emergency department diagnosis of pneumonia in children (0-21 years)...
June 6, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28583621/the-importance-of-subpleural-fibrosis-in-the-prognosis-of-patients-with-idiopathic-interstitial-pneumonias
#12
Tae Iwasawa, Tamiko Takemura, Koji Okudera, Toshiyuki Gotoh, Yuma Iwao, Hideya Kitamura, Tomohisa Baba, Takashi Ogura, Mari S Oba
PURPOSE: To compare computer-aided diagnostic results with histological findings obtained by surgical biopsy and evaluate whether subpleural lesion volumes can aid identification of idiopathic pulmonary fibrosis (IPF). MATERIALS AND METHODS: We retrospectively analyzed computed tomography (CT) images of 79 patients (43 with fibrosing nonspecific interstitial pneumonia (fNSIP) and 36 with IPF) using the Gaussian Histogram Normalized Correlation (GHNC) system. We determined the H-pattern based on honeycomb and/or fibrosis with traction bronchiectasis on CT, and measured the H-pattern volume ratio at the biopsy sites and in the subpleural area...
May 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28580063/imaging-findings-of-ulceroglandular-tularemia
#13
Neil Anand, Osmani Deochand, Robyn Murphy
Francisella tularensis, the causative organism in Tularemia, is a relatively rare disease. There are a few radiological clues to elucidate its presence when suspicion arises. There should be strong consideration for Tularemia in the differential of any patient with its classic symptoms, diffuse cervical lymphadenopathy with evidence of necrosis, and enlarged adenoids. Ultrasound may demonstrate suppurative lymphadenopathy suggestive of infection, as in the case presented. CT often will demonstrate the extent of lymphadenopathy...
January 2017: Journal of Radiology Case Reports
https://www.readbyqxmd.com/read/28577412/postmortem-computed-tomography-evaluation-of-fatal-gas-embolism-due-to-connection-of-an-intravenous-cannula-to-an-oxygen-supply
#14
Yoichiro Takahashi, Rie Sano, Akiyuki Yasuda, Eri Kuboya, Keiko Takahashi, Rieko Kubo, Yoshihiko Kominato, Hiroyuki Takei, Susumu Kobayashi, Takehiro Shimada, Sachiko Awata, Hiroyuki Tokue, Satoshi Hirasawa
An 84-year-old man who had suffered from chronic obstructive pulmonary disease accompanied by moderate pneumonia as well as gastric cancer with liver metastasis was found dead by a nurse, who noticed that the patient's intravenous catheter in the left forearm had been erroneously connected to an oxygen supply in his hospital room, leading to infusion of oxygen into a vein. Postmortem CT scanning demonstrated multiple accumulations of gas in the pulmonary artery, the right atrium and ventricle, as well as the left subclavian and brachiocephalic veins, corresponding to the route that the infused gas would have taken to the heart and pulmonary artery...
May 26, 2017: Legal Medicine
https://www.readbyqxmd.com/read/28570160/acute-respiratory-distress-syndrome-and-diffuse-alveolar-damage-new-insights-on-a-complex-relationship
#15
Pablo Cardinal-Fernández, José A Lorente, Aída Ballén-Barragán, Gustavo Matute-Bello
Acute respiratory distress syndrome (ARDS) is a major clinical problem with high morbidity and mortality. Diffuse alveolar damage (DAD) is considered the histological hallmark for the acute phase of ARDS. DAD is characterized by an acute phase with edema, hyaline membranes, and inflammation, followed by an organizing phase with alveolar septal fibrosis and type II pneumocyte hyperplasia. Given the difficulties in obtaining a biopsy in patients with ARDS, the presence of DAD is not required to make the diagnosis...
June 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28567102/neonatal-respiratory-distress-syndrome-chest-x-ray-or-lung-ultrasound-a-systematic-review
#16
REVIEW
Matthew Hiles, Anne-Marie Culpan, Catriona Watts, Theresa Munyombwe, Stephen Wolstenhulme
BACKGROUND AND AIM: Neonatal respiratory distress syndrome is a leading cause of morbidity in preterm new-born babies (<37 weeks gestation age). The current diagnostic reference standard includes clinical testing and chest radiography with associated exposure to ionising radiation. The aim of this review was to compare the diagnostic accuracy of lung ultrasound against the reference standard in symptomatic neonates of ≤42 weeks gestation age. METHODS: A systematic search of literature published between 1990 and 2016 identified 803 potentially relevant studies...
May 2017: Ultrasound: Journal of the British Medical Ultrasound Society
https://www.readbyqxmd.com/read/28552109/time-kill-kinetics-and-biocidal-effect-of-euclea-crispa-leaf-extracts-against-microbial-membrane
#17
Kazeem Adekunle Alayande, Carolina H Pohl, Anofi Omotayo Tom Ashafa
OBJECTIVE: To evaluate antimicrobial potential of the fractions partitioned from Euclea crispa leaf extract and determination of their impact on cell membrane disruption. METHODS: Antimicrobial potentials were evaluated via susceptibility test, determination of minimum inhibitory concentrations (MICs) and time-kill kinetics of the potent fractions. Degree of membrane disruption was determined by the amount of proteins and nucleotides released from within the cells and SEM images of the membrane after 120 min of treatment...
April 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28545080/computerized-margin-and-texture-analyses-for-differentiating-bacterial-pneumonia-and-invasive-mucinous-adenocarcinoma-presenting-as-consolidation
#18
Hyun Jung Koo, Mi Young Kim, Ja Hwan Koo, Yu Sub Sung, Jiwon Jung, Sung-Han Kim, Chang-Min Choi, Hwa Jung Kim
Radiologists have used margin characteristics based on routine visual analysis; however, the attenuation changes at the margin of the lesion on CT images have not been quantitatively assessed. We established a CT-based margin analysis method by comparing a target lesion with normal lung attenuation, drawing a slope to represent the attenuation changes. This approach was applied to patients with invasive mucinous adenocarcinoma (n = 40) or bacterial pneumonia (n = 30). Correlations among multiple regions of interest (ROIs) were obtained using intraclass correlation coefficient (ICC) values...
2017: PloS One
https://www.readbyqxmd.com/read/28540132/more-risks-and-complications-for-elective-spine-surgery-in-morbidly-obese-patients
#19
REVIEW
Nancy E Epstein
BACKGROUND: The vast majority of studies emphasize the greater morbidity/mortality for elective spine surgery in morbidly obese patients. METHODS: This review focuses on the increased morbidity/mortality of performing elective spinal operations in morbidly obese patients. There are two definitions of morbid obesity; a body mass index (BMI) of equal to or greater than 35 plus two major comorbid factors (e.g., hypertension, diabetes, etc.) or a BMI (morbidly obese III) of =≥40 kg/m(2)...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28529053/unusual-intra-parenchymal-pontomedullary-epidermoid-cyst-in-a-2-year-old-case-report-and-literature-review
#20
Anan Shtaya, Bassam Dabbous, Evgenia Fanou, Leslie Bridges, Samantha Hettige
BACKGROUND: Intrinsic brainstem epidermoid cysts are rare, benign, slow growing lesions. Their eloquence preclude complete excision, however subtotal resection will often result in prolonged or sometimes permanent relief of presenting symptoms and signs. We describe an unusual case and review the literature of this pathology in the paediatric population. CASE DESCRIPTION: We report an intra-axial pontine epidermoid cyst in a 2-year-old girl who presented with developmental delay, multiple cranial nerve palsies and pneumonia...
May 18, 2017: World Neurosurgery
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