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Imaging of pneumonia

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https://www.readbyqxmd.com/read/29229880/klebsiella-pneumoniae-antibiotic-resistance-identified-by-atomic-force-microscopy
#1
Vincenzo Ierardi, Paolo Domenichini, Silvia Reali, Gian Marco Chiappara, Gianluigi Devoto, Ugo Valbusa
In the last decade the detection of the resistance of bacteria to antibiotics treatment, developed by different kind of bacteria, is becoming a huge problem. We hereby present a different approach to the current problem of detection of bacteria resistance to antibiotics. Our aims were to use the atomic force microscopy (AFM) to investigate bacteria morphological changes in response to antibiotics treatment and explore the possibility of reducing the time required to obtain information on their resistance. In particular, we studied Klebsiella pneumoniae bacteria provided by the Lavagna Hospital ASL4 Liguria (Italy), where there are cases linked with antibiotics resistance of the Klebsiella pneumoniae...
December 2017: Journal of Biosciences
https://www.readbyqxmd.com/read/29226176/holistic-segmentation-of-the-lung-in-cine-mri
#2
William Kovacs, Nathan Hsieh, Holger Roth, Chioma Nnamdi-Emeratom, W Patricia Bandettini, Andrew Arai, Ami Mankodi, Ronald M Summers, Jianhua Yao
Duchenne muscular dystrophy (DMD) is a childhood-onset neuromuscular disease that results in the degeneration of muscle, starting in the extremities, before progressing to more vital areas, such as the lungs. Respiratory failure and pneumonia due to respiratory muscle weakness lead to hospitalization and early mortality. However, tracking the disease in this region can be difficult, as current methods are based on breathing tests and are incapable of distinguishing between muscle involvements. Cine MRI scans give insight into respiratory muscle movements, but the images suffer due to low spatial resolution and poor signal-to-noise ratio...
October 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/29225815/hypercalcaemia-preceding-diagnosis-of-pneumocystis-jirovecii-pneumonia-in-renal-transplant-recipients
#3
Jonathan Ling, Tara Anderson, Sanchia Warren, Geoffrey Kirkland, Matthew Jose, Richard Yu, Steven Yew, Samantha Mcfadyen, Alison Graver, William Johnson, Lisa Jeffs
Background: The overall incidence of Pneumocystis jirovecii pneumonia (PJP) in solid organ transplant recipients is 5-15%. A timely diagnosis of PJP is difficult and relies on imaging and detection of the organism. Methods: We present a case series of four patients displaying hypercalcaemia with an eventual diagnosis of PJP and document the management of the outbreak with a multidisciplinary team approach. We discuss the underlying pathophysiology and previous reports of hypercalcaemia preceding a diagnosis of PJP...
December 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/29225071/clinical-characteristics-of-pulmonary-mycobacterium-lentiflavum-disease-in-adult-patients
#4
Kazuma Yagi, Kozo Morimoto, Makoto Ishii, Ho Namkoong, Satoshi Okamori, Takanori Asakura, Shoji Suzuki, Takahiro Asami, Yoshifumi Uwamino, Yohei Funatsu, Hiroshi Fujiwara, Hirofumi Kamata, Tomoyasu Nishimura, Tomoko Betsuyaku, Atsuyuki Kurashima, Naoki Hasegawa
BACKGROUND: Mycobacterium lentiflavum organisms are slow-growing nontuberculous mycobacteria often associated with immunocompromised state and cervical lymphadenitis in young children. However, little is known about the clinical importance of pulmonary infection with M. lentiflavum in adults. METHODS: We reviewed the medical records of all adults who met the diagnostic criteria of pulmonary M. lentiflavum disease at Keio University Hospital and Fukujuji Hospital from 2001 to 2015...
December 7, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/29222007/current-concepts-in-pathogenesis-diagnosis-and-management-of-smoking-related-interstitial-lung-diseases
#5
REVIEW
Anupam Kumar, Sujith V Cherian, Robert Vassallo, Eunhee S Yi, Jay H Ryu
Tobacco exposure results in various changes to the airways and lung parenchyma. While emphysema represents the more common injury pattern, in some individuals, cigarette smoke injures alveolar epithelial and other lung cells resulting in diffuse infiltrates and parenchymal fibrosis. Smoking can trigger interstitial injury patterns mediated via recruitment and inappropriate persistence of myeloid and other immune cells including eosinophils. As our understanding of the role of cigarette smoke constituents in triggering lung injury continues to evolve, so does our recognition of the spectrum of smoking-related interstitial lung changes...
December 5, 2017: Chest
https://www.readbyqxmd.com/read/29212998/-spontaneous-regression-of-lung-cancer-in-an-elderly-patient-a-case-report
#6
Chiemi Nogimori, Hiroshi Yamamoto, Keisuke Nonaka, Manami Sazuka, Hironobu Hamaya, Hirokazu Yamada
An 82 year-old male was referred to us because of a nodule in the upper lobe of his right lung, which was incidentally found by computed tomography (CT) carried out in the course of treating pneumonia. The nodule was identified as non-keratinizing squamous cell carcinoma of the lung by bronchoscopy. A close investigation revealed the tumor to be cT1bN3M1b, clinical Stage IV. Although we only adopted a wait-and-see approach because of his age and his suspected myelodysplastic syndrome, the nodule had regressed on CT images after a year...
2017: Nihon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics
https://www.readbyqxmd.com/read/29207709/isolation-of-the-rare-opportunistic-yeast-saprochaete-capitata-from-clinical-samples-experience-from-a-tertiary-care-hospital-in-southern-india-and-a-brief-review-of-the-literature
#7
Umabala Pamidimukkala, Anuradha Kancharla, Sukanya Sudhaharan, Sadashivudu Gundeti, Surendra Mandarapu, Vamsi Krishna Nagalla, Sree Bhushan Raju, Sandhya Devi Karanam
Introduction: Saprochaete capitata (Teleomorph: Magnusiomyces capitatus) is a ubiquitous yeast found in environmental sources such as soil, water, air, plants and dairy products. It is also a part of the normal microbial flora in humans. The yeast is being increasingly reported as an opportunistic pathogen, especially in patients in the haemato-oncology setting, the infection being often mistakenly diagnosed as invasive candidiasis. Aim: To review the epidemiological, clinical and microbiological features of six patients admitted in our hospital over a period of 10 years (from January 2007 to December 2016), from whom Saprochaete capitata was isolated...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29203882/pasta-repeats-of-the-protein-kinase-stkp-interconnect-cell-constriction-and-separation-of-streptococcus-pneumoniae
#8
Laure Zucchini, Chryslène Mercy, Pierre Simon Garcia, Caroline Cluzel, Virginie Gueguen-Chaignon, Frédéric Galisson, Céline Freton, Sébastien Guiral, Céline Brochier-Armanet, Patrice Gouet, Christophe Grangeasse
Eukaryotic-like serine/threonine kinases (eSTKs) with extracellular PASTA repeats are key membrane regulators of bacterial cell division. How PASTA repeats govern eSTK activation and function remains elusive. Using evolution- and structural-guided approaches combined with cell imaging, we disentangle the role of each PASTA repeat of the eSTK StkP from Streptococcus pneumoniae. While the three membrane-proximal PASTA repeats behave as interchangeable modules required for the activation of StkP independently of cell wall binding, they also control the septal cell wall thickness...
December 4, 2017: Nature Microbiology
https://www.readbyqxmd.com/read/29202602/clinical-significance-of-serum-anti-gm-csf-autoantibody-levels-in-autoimmune-pulmonary-alveolar-proteinosis
#9
Masaki Nishimura, Etsuro Yamaguchi, Ayumu Takahashi, Nobuhiro Asai, Eisuke Katsuda, Toyohiro Ohta, Yoshinori Ohtsuka, Kenshi Kosaka, Ayako Matsubara, Hiroyuki Tanaka, Norihito Yokoe, Akihito Kubo, Satoshi Konno, Kenji Baba
AIM: Precise clinical significance of antigranulocyte-macrophage colony stimulating factor (GM-CSF) autoantibody levels in autoimmune pulmonary alveolar proteinosis (aPAP) has not been well studied. METHODS: We obtained sera from 50 healthy controls, 46 aPAP patients, 50 with sarcoidosis, 52 with idiopathic interstitial pneumonia and 75 with pneumoconiosis. The clinical course of aPAP patients was assessed by scoring computed tomography images in 19 patients. RESULTS: The cut-off level of anti-GM-CSF IgG for discrimination between aPAP and other diffuse lung diseases was 2...
December 5, 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/29194832/the-pathogenesis-of-paraesophageal-empyema-in-dogs-and-constancy-of-radiographic-and-computed-tomography-signs-are-linked-to-involvement-of-the-mediastinal-serous-cavity
#10
Karine Gendron, Sean P McDonough, James A Flanders, May Tse, Peter V Scrivani
The mediastinal serous cavity is a normal anatomic space in the caudal mediastinum. Aims of this anatomic and case series study were to describe the signs of pathologic expansion of the mediastinal serous cavity observed during computed tomography (CT), review the underlying anatomy, perform a literature review, and evaluate the medical records of several dogs with mediastinal serous cavity empyema (paraesophageal empyema). The mesothelial lined mediastinal serous cavity is a cranial extension of the omental bursa, separated from the peritoneal cavity by the diaphragm, in the dorsal part of the caudal mediastinum, to the right of the esophagus, between the heart base and diaphragm...
November 30, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29194717/validity-of-ultrasound-lung-comets-for-assessment-of-the-severity-of-interstitial-pneumonia
#11
Mariko Asano, Hiroyuki Watanabe, Kazuhiro Sato, Yuji Okuda, Sho Sakamoto, Yukiyasu Hasegawa, Kazuhisa Sudo, Masahide Takeda, Masaaki Sano, Satoshi Kibira, Hiroshi Ito
OBJECTIVES: Ultrasound (US) lung comets are often observed in patients with interstitial lung disease or congestive heart failure, but few studies have explored the clinical importance of US lung comets in patients with the former condition. We explored whether the US lung comet number could be used to assess the severity of interstitial pneumonia. METHODS: Forty stable patients with interstitial pneumonia were examined. Lung comets evident on transthoracic US imaging in 12 selected regions of the posterior chest wall were analyzed...
November 30, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29193209/cicatricial-organizing-pneumonia-mimicking-a-fibrosing-interstitial-pneumonia
#12
Andrew Churg, Joanne L Wright, AnaMaria Bilawich
AIMS: Organizing pneumonia (OP) is composed of loose granulation tissue plugs in distal airspaces; these disappear with steroid treatment. Recently a variant labeled "cicatricial" OP has been described in which the granulation tissue organized to much denser fibrous tissue but still retained the usual pattern of OP. Here we report 10 patients thought to have an interstitial lung disease, and who on biopsy had a variant of cicatricial OP characterized by linear bands or small nodular masses of dense fibrous tissue that does not resemble ordinary OP...
November 29, 2017: Histopathology
https://www.readbyqxmd.com/read/29191583/wolf-in-sheep-s-clothing-primary-lung-cancer-mimicking-benign-entities
#13
REVIEW
Annemie Snoeckx, Amélie Dendooven, Laurens Carp, Damien Desbuquoit, Maarten J Spinhoven, Patrick Lauwers, Paul E Van Schil, Jan P van Meerbeeck, Paul M Parizel
Lung cancer is the most common cancer worldwide. On imaging, it typically presents as mass or nodule. Recognition of these typical cases is often straightforward, whereas diagnosis of uncommon manifestations of primary lung cancer is far more challenging. Lung cancer can mimic a variety of benign entities, including pneumonia, lung abscess, postinfectious scarring, atelectasis, a mediastinal mass, emphysema and granulomatous diseases. Correlation with previous history, clinical and biochemical parameters is necessary in the assessment of these cases, but often aspecific and inconclusive...
October 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/29187674/nitrative-dna-damage-in-cultured-macrophages-exposed-to-indium-oxide
#14
Tahmina Afroz, Yusuke Hiraku, Ning Ma, Sharif Ahmed, Shinji Oikawa, Shosuke Kawanishi, Mariko Murata
OBJECTIVES: Indium compounds are used in manufacturing displays of mobile phones and televisions. However, these materials cause interstitial pneumonia in exposed workers. Animal experiments demonstrated that indium compounds caused lung cancer. Chronic inflammation is considered to play a role in lung carcinogenesis and fibrosis induced by particulate matters. 8-Nitroguanine (8-nitroG) is a mutagenic DNA lesion formed during inflammation and may participate in carcinogenesis. To clarify the mechanism of carcinogenesis, we examined 8-nitroG formation in indium-exposed cultured cells...
November 29, 2017: Journal of Occupational Health
https://www.readbyqxmd.com/read/29187254/acute-disseminated-melioidosis-giving-rise-to-pneumonia-and-renal-abscesses-complicated-with-thrombotic-thrombocytopenic-purpura-in-a-post-partum-woman-a-case-report
#15
Piyumi Sachindra Alwis Wijewickrama, Rohini Weerakoon
BACKGROUND: Melioidosis is an established endemic infection in Sri Lanka, caused by Burkholderia pseudomallei, a gram negative bacterium distributed in saprophytes in soil and surface water. Main mode of transmission is via percutaneous inoculation. Pneumonia is the most common presentation in acute disease. CASE PRESENTATION: We report a 33 year old previously healthy Sinhalese female with an occupational exposure to surface water in paddy fields, who was on postpartum day 6 following an uncomplicated pregnancy and delivery via an elective caesarian section...
November 29, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29181204/a-case-of-invasive-pneumococcal-infection-with-septic-shock-and-rare-complications
#16
John R Woytanowski, Nausheen Hakim, Caytlin Deering, Sara Schultz
Invasive pneumococcus is a serious illness with potentially devastating outcomes. A 64-year-old female with a medical history of psoriatic arthritis and diabetes was transferred from an outside hospital for ventilator dependent respiratory failure and altered mental status. She initially presented with worsening back pain and was found to have leukocytosis with bandemia and acute renal failure but she was in septic shock upon arrival to our tertiary care center. Her blood cultures grew Streptococcus pneumoniae and MRI of the brain revealed pus within the posterior lateral ventricles and multiple infarcts...
2017: Case Reports in Critical Care
https://www.readbyqxmd.com/read/29174858/visualized-evaluation-of-blood-flow-to-the-gastric-conduit-and-complications-in-esophageal-reconstruction
#17
Kazuhiro Noma, Yasuhiro Shirakawa, Nobuhiko Kanaya, Tsuyoshi Okada, Naoaki Maeda, Takayuki Ninomiya, Shunsuke Tanabe, Kazufumi Sakurama, Toshiyoshi Fujiwara
BACKGROUND: Evaluation of the blood supply to gastric conduits is critically important to avoid complications following esophagectomy. We commenced visualized evaluation of blood flow using indocyanine green (ICG) fluorescent imaging from July 2015, to reduce reconstructive complications. In this study, we aimed to statistically verify the efficacy of blood flow evaluation using our simplified ICG method. STUDY DESIGN: A total of 285 consecutive patients who underwent esophagectomy and gastric conduit reconstruction were reviewed and divided into two groups: before and after introduction of ICG evaluation...
November 22, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/29174221/lung-toxicity-in-non-small-cell-lung-cancer-patients-exposed-to-alk-inhibitors-report-of-a-peculiar-case-and-systematic-review-of-the-literature
#18
REVIEW
Benedetta Pellegrino, Francesco Facchinetti, Paola Bordi, Mario Silva, Letizia Gnetti, Marcello Tiseo
Lung toxicity is a potential fatal effect involving non-small-cell lung cancer (NSCLC) patients exposed to tyrosine kinase inhibitors (TKIs). Moving from our experience regarding a patient who developed lung toxicity while receiving 2 different anaplastic lymphoma kinase (ALK)-TKIs, we performed a systematic review to assess the epidemiologic magnitude and the clinical significance of such toxicity in NSCLC patients treated with ALK-TKIs. Studies were identified using MEDLINE and additional sources (European Society for Medical Oncology, American Society of Clinical Oncology, and World Conference on Lung Cancer abstracts) in agreement with Preferred Reporting Items for Systematic Reviews and Meta-Analyses and Cochrane guidelines...
October 28, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/29166132/imaging-of-iatrogenic-esophageal-injuries-using-optimized-ct-esophageal-leak-protocol-pearls-and-pitfalls
#19
Rachna Madan, Olga Laur, Breland Crudup, Latia Peavy, Brett W Carter
Iatrogenic injury to the esophagus is a serious complication which is increasingly seen in clinical practice secondary to expansion and greater acceptability of surgical and endoscopic esophageal procedures. Morbidity and mortality following such injury is high. This is mostly due to an inflammatory response to gastric contents in the mediastinum, and the negative intra-thoracic pressures that may further draw out esophageal contents into the mediastinum leading to mediastinitis. Subsequently, pulmonary complications such as pneumonia or abscess may ensue leading to rapid clinical deterioration...
November 22, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29162286/medical-management-of-a-subretinal-klebsiella-pneumoniae-abscess-with-excellent-visual-outcome-without-performing-vitrectomy
#20
A Martel, B Butet, J C Ramel, D Martiano, S Baillif
OBJECTIVE: To report the case of a Klebsiella pneumoniae endogenous endophthalmitis (KPEE) of hepatic and urinary origin that was successfully treated with systemic antibiotherapy and 13 intravitreal antibiotics injections without performing a vitrectomy. PATIENT AND METHOD: Case report of a 60-year-old man with a subretinal abscess in the left eye that developed 3 days after initial presentation for K. pneumoniae bacteremia, liver abscess and urinary tract infection...
November 18, 2017: Journal Français D'ophtalmologie
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