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Imaging of pneumonia

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https://www.readbyqxmd.com/read/27925304/dura-mater-graft-associated-creutzfeldt-jakob-disease-with-30-year-incubation-period
#1
Masahiro Shijo, Hiroyuki Honda, Sachiko Koyama, Koji Ishitsuka, Koichiro Maeda, Junya Kuroda, Mitsugu Tanii, Takanari Kitazono, Toru Iwaki
Over 60% of all patients with dura mater graft-associated Creutzfeldt-Jakob disease (dCJD) have been diagnosed in Japan. The incubation period has ranged from 1 to 30 years and the age at onset from 15 to 80 years. Here, we report a 77-year-old male Japanese autopsied dCJD case with the longest incubation period so far in Japan. He received a cadaveric dural graft at the right cranial convexity following a craniotomy for meningioma at the age of 46. At 30 years post-dural graft placement, disorientation was observed as an initial symptom of dCJD...
December 7, 2016: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/27921227/-nosocomial-pneumonia-from-a%C3%A2-radiological-perspective
#2
REVIEW
P Agarwal, A Wielandner
Due to the high morbidity and mortality, nosocomial pneumonia represents a serious risk in hospitalized patients. The increased risk of infections with multidrug-resistant (MDR) pathogens makes a timely diagnosis and prompt therapy indispensable. A newly occurring or progressive infiltrate in any patient who has been hospitalized for more than 48 h should be viewed with suspicion. In contrast to community acquired pneumonia (CAP), radiography plays a limited role in the diagnosis of hospital-acquired pneumonia (HAP)...
December 5, 2016: Der Radiologe
https://www.readbyqxmd.com/read/27920654/a-rare-cause-of-pulmonary-nodules
#3
Michael Tsuyoshi Chew, Eric Chak, Karen Matsukuma
Crohn's disease is a chronic, idiopathic autoimmune disorder that primarily targets the gastrointestinal (GI) system. It is characterized by transmural inflammation of the GI tract that can occur anywhere from the mouth to the anus. Not infrequently, the disease may also have extraintestinal manifestations (EIMs) that can affect almost any organ system. It is estimated that EIMs affect up to 36% of patients with Crohn's disease, but the incidence and prevalence of pulmonary involvement are variable in the literature and may be as low as 0...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27917008/visualization-of-neutrophil-extracellular-traps-and-fibrin-meshwork-in-human-fibrinopurulent-inflammatory-lesions-iii-correlative-light-and-electron-microscopic-study
#4
Takanori Onouchi, Kazuya Shiogama, Yasuyoshi Mizutani, Takashi Takaki, Yutaka Tsutsumi
Neutrophil extracellular traps (NETs) released from dead neutrophils at the site of inflammation represent webs of neutrophilic DNA stretches dotted with granule-derived antimicrobial proteins, including lactoferrin, and play important roles in innate immunity against microbial infection. We have shown the coexistence of NETs and fibrin meshwork in varied fibrinopurulent inflammatory lesions at both light and electron microscopic levels. In the present study, correlative light and electron microscopy (CLEM) employing confocal laser scanning microscopy and scanning electron microscopy was performed to bridge light and electron microscopic images of NETs and fibrin fibrils in formalin-fixed, paraffin-embedded, autopsied lung sections of legionnaire's pneumonia...
November 1, 2016: Acta Histochemica et Cytochemica
https://www.readbyqxmd.com/read/27910828/biofilm-prevention-of-gram-negative-bacterial-pathogens-involved-in-periprosthetic-infection-by-antibiotic-loaded-calcium-sulfate-beads-in-vitro
#5
Robert P Howlin, Christopher Winnard, Connor J Frapwell, Jeremy S Webb, John J Cooper, Sean S Aiken, Paul Stoodley
Biofilm formation represents a key stage in the pathogenesis of prosthetic infections (PIs). More tolerant to antibiotics than their planktonic counterparts, biofilm bacteria are difficult to eradicate using conventional therapeutic regimes. A common approach in PI management is the adjunctive use of localised antibiotics in addition to systemic administration in an attempt to protect the implant from colonisation by infiltrating bacteria. This study evaluates the antibacterial and antibiofilm efficacy of antibiotic-loaded dissolvable calcium sulphate, previously shown to be effective against key gram-positive pathogens, against gram-negative species important in the establishment of chronic infection in PIs...
December 2, 2016: Biomedical Materials
https://www.readbyqxmd.com/read/27884603/cranial-nerve-involvement-in-charcot-marie-tooth-disease
#6
Nirav Das, Savannah Kandalaft, Xiao Wu, Ajay Malhotra
BACKGROUND: Charcot-Marie-Tooth Disease (CMT) is a rare disorder with less than 200,000 cases reported in the US every year, making diagnosis challenging. MR and CT imaging has become more common in the evaluation of CMT to identify areas of disease involvement. CASE REPORT: A 27-year-old female from Guatemala with a past history of polio initially presented to the emergency room for necrotizing pneumonia. MRI images demonstrated smoothly enlarged, mildly enhancing trigeminal nerves...
November 21, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/27882146/pulmonary-histoplasmosis-in-a-immunocompetent-patient-a-case-report-and-literature-review
#7
Cui Zhu, Ge Wang, Qiong Chen, Bixiu He, Lijing Wang
In the present study, the case of a 54-year-old male patient diagnosed with pulmonary histoplasmosis is reported, with the aim to increase the understanding of the disease characteristics and thereby facilitate the diagnosis and treatment of pulmonary histoplasmosis. Clinical manifestations, diagnosis, treatment and clinical outcomes of the present case of pulmonary histoplasmosis were described. In addition, 76 histoplasmosis patients with complete clinical data were reviewed by searching the literature for relevant studies published during 1990 and 2015...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27879182/-acute-respiratory-failure-caused-by-minocycline
#8
B Kok, M J T van de Ven, H J van Leeuwen
BACKGROUND: In the case of pneumonia an infectious cause is always considered first. However, toxic agents and medicines can also be the cause of pneumonia. CASE DESCRIPTION: A 54-year-old woman was referred to the emergency department because of progressive dyspnoea, a non-productive cough, headache, and fever. She was admitted with the diagnosis community acquired pneumonia. Despite treatment with antibiotics and oxygen she developed hypoxic respiratory failure, which necessitated invasive mechanical ventilation...
2016: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/27873091/pre-pharyngeal-swallow-effects-of-recurrent-laryngeal-nerve-lesion-on-bolus-shape-and-airway-protection-in-an-infant-pig-model
#9
Francois D H Gould, B Yglesias, J Ohlemacher, R Z German
Recurrent laryngeal nerve (RLN) damage in infants leads to increased dysphagia and aspiration pneumonia. Recent work has shown that intraoral transport and swallow kinematics change following RLN lesion, suggesting potential changes in bolus formation prior to the swallow. In this study, we used geometric morphometrics to understand the effect of bolus shape on penetration and aspiration in infants with and without RLN lesion. We hypothesized (1) that geometric bolus properties are related to airway protection outcomes and (2) that in infants with RLN lesion, the relationship between geometric bolus properties and dysphagia is changed...
November 21, 2016: Dysphagia
https://www.readbyqxmd.com/read/27867548/detection-of-salivary-aspiration-using-radionuclide-salivagram-spect-ct-in-patients-with-copd-exacerbation-a-preliminary-study
#10
Peng Hou, Huaifu Deng, Zhida Wu, Haiping Liu, Ni Liu, Zeguang Zheng, Ping Chen
BACKGROUND: The aim of this prospective study was to assess the utility of radionuclide salivagram for detecting salivary aspiration in AECOPD patients and to evaluate the adding value of SPECT/CT to planar imaging. METHODS: 52 consecutive AECOPD patients underwent radionuclide salivagram SPECT/CT and water swallow test between April 2012 and March 2014. All images were interpreted independently by two experienced nuclear medicine physicians. Final diagnosis was made by consensus of two readers...
October 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/27867536/life-threatening-mrsa-sepsis-with-bilateral-pneumonia-osteomyelitis-and-septic-arthritis-of-the-knee-in-a-previously-healthy-13-year-old-boy-a-case-report
#11
Nina Hardgrib, Michala Wang, Anne Grethe Jurik, Klaus K Petersen
The incidence and severity of methicillin resistant Staphylococcus aureus (MRSA) infections are increasing and cause high mortality and morbidity. We describe the first pediatric case in Scandinavia with Panton-Valentine leucocidin (PVL) positive MRSA septicemia who developed bilateral pneumonia, arthritis of the knee, and osteomyelitis of the tibia. Radiological investigation and interpretation directed the treatment, especially the surgical debridement, and combined with clinical and biochemical findings lead to close interdisciplinary treatment with frequent surgical interventions and antimicrobial combination therapy...
October 2016: Acta Radiologica Open
https://www.readbyqxmd.com/read/27865876/interstitial-lung-disease-in-the-elderly
#12
Karen C Patterson, Rupal J Shah, Mary K Porteous, Jason D Christie, Carly D'Errico, Matthew Chadwick, Matthew Triano, Charuhas Deshpande, Milton D Rossman, Leslie A Litzky, Maryl E Kreider, Wallace T Miller
BACKGROUND: Despite the relationship of idiopathic pulmonary fibrosis (IPF) with advancing age, little is known about the epidemiology of interstitial lung diseases (ILD) in the elderly. Here we describe the diagnoses, clinical characteristics, and outcomes of patients who were elderly at the time of ILD diagnosis. METHODS: Among subjects from a prospective cohort study of ILD, elderly was defined as age > 70. Diagnoses were derived from a multi-disciplinary review...
November 16, 2016: Chest
https://www.readbyqxmd.com/read/27865739/shaken-or-stirred-comparison-of-methods-for-dispersion-of-mycoplasma-pneumoniae-aggregates-for-persistence-in-vivo
#13
Arthur H Totten, Li Xiao, Donna M Crabb, Amy E Ratliff, Kevin Dybvig, Ken B Waites, T Prescott Atkinson
BACKGROUND: Mycoplasma pneumoniae (Mpn), one of the smallest self-replicating prokaryotes, is known to readily adhere to host cells and to form aggregates in suspension. Having only one cell membrane and no cell wall, mycoplasmas present questions as to optimal aggregate disruption method while minimizing cell death in vitro. We compared conventional vortex mixing with other methods for disruption of bacterial aggregates and for its effect on cell viability. METHODS: Strain UAB PO1, a clinical Mpn isolate, was dispersed using a conventional vortex mixer with or without nonionic detergent (0...
November 17, 2016: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/27862706/clinical-relevance-of-necrotizing-change-in-patients-with-community-acquired-pneumonia
#14
Hyewon Seo, Seung-Ick Cha, Kyung-Min Shin, Jae-Kwang Lim, Seung-Soo Yoo, Jaehee Lee, Shin-Yup Lee, Chang-Ho Kim, Jae-Yong Park, Won-Kee Lee
BACKGROUND AND OBJECTIVE: Few studies have analysed a large number of patients with necrotizing pneumonia (NP) diagnosed based on computed tomography (CT) scans. The aim of the present study was to document the incidence and clinical features of NP in patients with community-acquired pneumonia (CAP). METHODS: This retrospective study was conducted on CAP patients who had been admitted to a tertiary referral centre and who had available enhanced CT scan images. Patients were allocated into NP and non-NP groups, and they were compared with respect to various clinical variables...
November 8, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27852233/two-unusual-cases-of-successful-treatment-of-hypermucoviscous-klebsiella-pneumoniae-invasive-syndrome
#15
Hiroki Namikawa, Koichi Yamada, Hiroki Fujimoto, Ken-Ichi Oinuma, Yoshihiro Tochino, Yasuhiko Takemoto, Yukihiro Kaneko, Taichi Shuto, Hiroshi Kakeya
BACKGROUND: A few Japanese cases of hypermucoviscous Klebsiella pneumoniae (K. pneumoniae) invasive syndrome have recently been reported. Although extrahepatic complications from bacteremic dissemination have been observed, infected aneurysms are rare. Furthermore, the primary source of infection is generally a liver abscess, and is rarely the prostate. Therefore, we report two atypical cases of hypermucoviscous K. pneumoniae invasive syndrome. CASE PRESENTATION: The first case was an 81-year-old Japanese man with no significant medical history, who was referred to our hospital for vision loss in his right eye...
November 16, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27834742/results-of-the-ictus-2-trial-intravascular-cooling-in-the-treatment-of-stroke-2
#16
Patrick Lyden, Thomas Hemmen, James Grotta, Karen Rapp, Karin Ernstrom, Teresa Rzesiewicz, Stephanie Parker, Mauricio Concha, Syed Hussain, Sachin Agarwal, Brett Meyer, Julie Jurf, Irfan Altafullah, Rema Raman
BACKGROUND AND PURPOSE: Therapeutic hypothermia is a potent neuroprotectant approved for cerebral protection after neonatal hypoxia-ischemia and cardiac arrest. Therapeutic hypothermia for acute ischemic stroke is safe and feasible in pilot trials. We designed a study protocol to provide safer, faster therapeutic hypothermia in stroke patients. METHODS: Safety procedures and 4°C saline infusions for faster cooling were added to the ICTuS trial (Intravascular Cooling in the Treatment of Stroke) protocol...
December 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27833410/clinical-features-and-radiological-findings-of-adenovirus-pneumonia-associated-with-progression-to-acute-respiratory-distress-syndrome-a-single-center-study-in-19-adult-patients
#17
Min Jae Cha, Myung Jin Chung, Kyung Soo Lee, Tae Jung Kim, Tae Sung Kim, Semin Chong, Jungho Han
OBJECTIVE: To describe radiologic findings of adenovirus pneumonia and to understand clinico-radiological features associated with progression to acute respiratory distress syndrome (ARDS) in patients with adenovirus pneumonia. MATERIALS AND METHODS: This study included 19 patients diagnosed with adenovirus pneumonia at a tertiary referral center, in the period between March 2003 and April 2015. Clinical findings were reviewed, and two radiologists assessed imaging findings by consensus...
November 2016: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/27824002/clinical-manifestations-of-fibrosing-mediastinitis-in-chinese-patients
#18
Yan Hu, Jian-Xing Qiu, Ji-Ping Liao, Hong Zhang, Zhe Jin, Guang-Fa Wang
BACKGROUND: Fibrosing mediastinitis (FM) is a rare disease. FM is thought to be related to prior granulomatous mediastinal infection, such as histoplasmosis or tuberculosis. The majority of cases have been reported in endemic regions for histoplasmosis. The characteristics of cases of FM in China, where the prevalence of tuberculosis is high, have not been reported. We analyzed the clinical, imaging, and bronchoscopic features of Chinese patients with FM to promote awareness of this disease...
2016: Chinese Medical Journal
https://www.readbyqxmd.com/read/27811069/chest-magnetic-resonance-imaging-for-pneumonia-diagnosis-in-outpatients-with-lower-respiratory-tract-infection
#19
Hannu Syrjala, Markku Broas, Pasi Ohtonen, Airi Jartti, Eija Pääkkö
We assessed whether magnetic resonance imaging (MRI) is applicable for diagnosing pneumonia among adult outpatients with lower respiratory tract infection.Patients were recruited prospectively when they had symptoms for ≤7 days and fever ≥37.8 °C. The patients underwent high-resolution computed tomography (HRCT), MRI and chest radiography, which were repeated 1 month later if necessary, to verify pneumonia. The duration of MRI examination was 3-4 min.Among 77 patients, HRCT, MRI and radiography identified 32 (41...
November 3, 2016: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/27805517/role-of-procalcitonin-in-differential-diagnosis-of-pneumonia-and-pulmonary-congestion-associated-with-end-stage-renal-failure
#20
Şule Akçay, Ilgaz Doğrul, Siren Sezer, Mehmet Haberal
OBJECTIVES: We aimed to determine the role of procalcitonin in distinguishing between infectious and noninfectious causes, specifically the cause of the infiltrative appearances detected on lung radiographs of patients with end-stage renal failure receiving hemodialysis. MATERIALS AND METHODS: Sixty-six patients between 19 and 87 years of age were enrolled. Patients were divided into 3 groups, with each group consisting of 22 patients: group 1 comprised pneumonia patients without end-stage renal failure, group 2 comprised pulmonary congestion patients with end-stage renal failure, and group 3 were healthy participants...
November 2016: Experimental and Clinical Transplantation
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