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pyogenic liver abscess

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https://www.readbyqxmd.com/read/28217619/diagnostic-difficulty-of-liver-lesion
#1
Jayabal Pandiaraja
Liver abscess is mostly either pyogenic or amebic. Fungal and mycobacterial liver abscesses are rare and mostly associated with immunosuppression. The occurrence of fungal liver abscess with hydatid cyst was never reported previously. This case created diagnostic difficulty, whether we are dealing with liver abscess or hydatid cyst. Sometimes, it may be possible that concurrent occurrence of hydatid cyst with liver abscess or hydatid cyst become infected and mimic like liver abscess.
July 2016: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/28203549/microbiological-and-clinical-characteristics-of-hypermucoviscous-klebsiella-pneumoniae-isolates-associated-with-invasive-infections-in-china
#2
Yinjuan Guo, Shanshan Wang, Lingling Zhan, Ye Jin, Jingjing Duan, Zhihao Hao, Jingnan Lv, Xiuqin Qi, Liang Chen, Barry N Kreiswirth, Liangxing Wang, Fangyou Yu
A distinctive syndrome caused by hypermucoviscous Klebsiella pneumoniae (HMKP) including pyogenic liver abscess (PLA) is now becoming a globally emerging disease. In the present study, 22.8% (84/369) of K. pneumoniae clinical isolates associated with various types of invasive infections were identified as HMKP, with 45.2% associated with PLA. Multivariate regression analysis showed that male patients with 41-50 years, PLA, diabetes mellitus, and hypertension were independent risk factors for HMKP infections...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28191374/klebsiella-pneumoniae-liver-abscess-a-case-report-and-review-of-literature
#3
Faisal Kamal, George Williams, Hina Akbar, Muhammad Ali Khan, Dipen Kadaria
Klebsiella pneumoniae (K.pneumoniae) is a known cause of pyogenic liver abscess (PLA) in the absence of hepatobiliary disease. In settings of hepatic infection, it has also been known to cause disseminated infections including meningitis and endopthalmitis. Several groups of patients are particularly susceptible to infection, including patients with diabetes mellitus, those from Southeast Asia and those with the preexisting hepatobiliary disease. We present a case of K.pneumoniae PLA with bacteremia. A 39-year-old Vietnamese male with no previous medical history who presented with complaints of abdominal pain, nausea, vomiting, diarrhea and fever...
January 10, 2017: Curēus
https://www.readbyqxmd.com/read/28188901/trueperella-pyogenes-isolated-from-dairy-cows-with-endometritis-in-inner-mongolia-china-tetracycline-susceptibility-and-tetracycline-resistance-gene-distribution
#4
Dexian Zhang, Jingcui Zhao, Qiuxia Wang, Yaochuan Liu, Chunlian Tian, Yujun Zhao, Lihui Yu, Mingchun Liu
Trueperella pyogenes plays a crucial role in endometritis pathogenesis and is also associated with many infections, including metritis, mastitis, arthritis and liver abscessation, in many domestic animals. In this study, we investigated the prevalence of tetracycline resistance in T. pyogenes isolated from dairy cows with endometritis in Inner Mongolia, China, and we assessed tetracycline-resistance gene distribution among the isolates. Our results indicated that 68.7% and 62.5% of the isolates were resistant to tetracycline and doxycycline, respectively, and the rate of resistance to metacycline was 18...
February 8, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28127209/areas-of-research-and-clinical-approaches-to-the-study-of-liver-abscess
#5
Gregorio González-Alcaide, Jorge Peris, José Manuel Ramos
AIM: To analyze the research activity on liver abscess (LA) and identify the main topic clusters in the area. METHODS: We identified all documents using the medical subject heading "LA" indexed in the MEDLINE database between 2001 and 2015. We performed a descriptive bibliometric analysis, characterizing the evolution of scientific activity, the publication types of the documents, the document categories of clinical interest (case reports, clinical trials, evaluation studies, meta-analysis, observational studies, practice guidelines and validation studies) and the geographic distribution of the research...
January 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28119947/primary-tubercular-liver-abscess-complicated-by-tubercular-meningitis-in-portal-cavernoma-cholangiopathy
#6
Ruchir Patel, Dhaval Choksi, Prateik Poddar, Kaivan Shah, Meghraj Ingle, Prabha Sawant
While hepatic tuberculosis is rare, primary tubercular liver abscess (TLA) is a rarer condition even in endemic countries such as India. Liver abscess in portal cavernoma cholangiopathy (PCC) is predominantly pyogenic. A 14-year-old girl was found to have PCC with multiple liver abscesses. Persistent fever and development of neurological symptoms prompted further evaluation, and she was found to have primary TLA complicated by tubercular meningitis. We report a rare case of primary TLA complicated by tubercular meningitis in asymptomatic PCC...
August 2016: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28096994/multiple-liver-abscesses-and-bacteremia-caused-by-streptococcus-constellatus-infection-a-case-report
#7
Nobuhiro Akuzawa, Takashi Hatori, Yonosuke Kitahara, Masahiko Kurabayashi
The Streptococcus milleri group (SMG) comprises commensal mucosal bacteria. Pyogenic liver abscesses due to hematogenous SMG infection are rare but can be observed even in healthy patients. In such cases, physicians should consider the existence of primary lesions that allow penetration of the SMG.
January 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28079538/antimicrobial-therapy-for-pyogenic-liver-abscess-secondary-to-streptococcus-intermedius-bacteremia
#8
Rukma Parthvi, Mohsena Amin, Sunil Mehra
No abstract text is available yet for this article.
January 5, 2017: American Journal of Therapeutics
https://www.readbyqxmd.com/read/28061872/amoebic-liver-abscess-in-northern-sri-lanka-first-report-of-immunological-and-molecular-confirmation-of-aetiology
#9
Selvam Kannathasan, Arumugam Murugananthan, Thirunavukarasu Kumanan, Devika Iddawala, Nilanthi Renuka de Silva, Nadarajah Rajeshkannan, Rashidul Haque
BACKGROUND: Since 1985, amoebic liver abscess (ALA) has been a public health problem in northern Sri Lanka. Clinicians arrive at a diagnosis based on clinical and ultrasonographic findings, which cannot differentiate pyogenic liver abscess (PLA) from ALA. As the treatment and outcome of the ALA and PLA differs, determining the etiological agent is crucial. METHODS: All clinically diagnosed ALA patients admitted to the Teaching Hospital (TH) in Jaffna during the study period were included and the clinical features, haematological parameters, and ultrasound scanning findings were obtained...
January 7, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28003727/an-unusual-complication-of-pyogenic-liver-abscess
#10
Hemanta K Nayak, Kamlesh Kumar, Vivek A Saraswat, Gaurav Pandey, Samir Mohindra, Ankur Singh
No abstract text is available yet for this article.
December 2016: Journal of Clinical and Experimental Hepatology
https://www.readbyqxmd.com/read/27979957/complete-genome-sequence-of-trueperella-pyogenes-isolated-from-infected-farmland-goats
#11
Su-Hui Zhang, Jin-Jie Qiu, Rui Yang, Ke-Fei Shen, Guo-Yang Xu, Li-Zhi Fu
Trueperella pyogenes is a significant pathogen of livestock, causing diverse diseases, such as mastitis, liver abscessation, and pneumonia. In this study, we have reported the genome sequence of Trueperella pyogenes 2012CQ-ZSH. Moreover, several genes coding for virulence factors were found, such as pyolysin (PYO), nanH, nanP, cbpA, fimC, and fimE.
December 15, 2016: Genome Announcements
https://www.readbyqxmd.com/read/27965935/clinical-and-genomic-analysis-of-liver-abscess-causing-klebsiella-pneumoniae-identifies-new-liver-abscess-associated-virulence-genes
#12
Meiping Ye, Jianfei Tu, Jianping Jiang, Yingmin Bi, Weibo You, Yanliang Zhang, Jianmin Ren, Taohui Zhu, Zhuo Cao, Zuochun Yu, Chuxiao Shao, Zhen Shen, Baixing Ding, Jinyi Yuan, Xu Zhao, Qinglan Guo, Xiaogang Xu, Jinwei Huang, Minggui Wang
Hypervirulent variants of Klebsiella pneumoniae (hvKp) that cause invasive community-acquired pyogenic liver abscess (PLA) have emerged globally. Little is known about the virulence determinants associated with hvKp, except for the virulence genes rmpA/A2 and siderophores (iroBCD/iucABCD) carried by the pK2044-like large virulence plasmid. Here, we collected most recent clinical isolates of hvKp from PLA samples in China, and performed clinical, molecular, and genomic sequencing analyses. We found that 90.9% (40/44) of the pathogens causing PLA were K...
2016: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/27933440/modern-role-of-clinical-ultrasound-in-liver-abscess-and-echinococcosis
#13
REVIEW
Rita Barosa, João Pinto, Ana Caldeira, Eduardo Pereira
In the Western world, liver abscesses are predominantly of pyogenic origin and can present a wide range of ultrasonographic features, from a solid mass to a cystic cavity. Amoebic abscesses are endemic in tropical areas and typically round single lesions. Echinococcal cyst is diagnosed by ultrasound (US). Serology is particularly useful when pathognomonic US features are absent. Treatment is determined based on the WHO ultrasonographic classification, and puncture, aspiration, injection, re-aspiration (PAIR) is a US-guided therapeutic option...
December 8, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27930527/feasibility-of-radiofrequency-ablation-as-an-alternative-to-surgical-intervention-in-patients-with-huge-multiloculated-pyogenic-liver-abscesses-a-retrospective-cohort-study
#14
Shan Ke, Xue-Mei Ding, Jun Gao, Shao-Hong Wang, Jian Kong, Li Xu, Wen-Bing Sun
This retrospective cohort study investigated the feasibility of radiofrequency (RF) ablation as an alternative to surgical intervention in patients with huge multiloculated pyogenic liver abscesses (PLAs).From August 2010 to April 2016, 83 patients with PLA were admitted to Beijing Chao-Yang Hospital, China. Four of these patients had huge multiloculated PLAs and underwent RF ablation plus antibiotics. The inclusion criteria for RF ablation were as follows: multiloculated PLA confirmed by computed tomography (CT) or magnetic resonance imaging (MRI), widest diameter of the PLA ≥5 cm, failure to respond to or not suitable to treatment with percutaneous drainage (PD), and patient refusal of surgery...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27929082/a-retrospective-study-of-pyogenic-liver-abscess-focusing-on-klebsiella-pneumoniae-as-a-primary-pathogen-in-china-from-1994-to-2015
#15
Yun Qian, Chi Chun Wong, Sanchuan Lai, Huarong Chen, Xingkang He, Leimin Sun, Jiaguo Wu, Jiancang Zhou, Jun Yu, Weili Liu, Daoyang Zhou, Jianmin Si
Pyogenic liver abscess (PLA) is a common intra-abdominal infection in adults. In this study, we aim to explore demographic and clinical characteristics of PLA focusing on Klebsiella pneumoniae (K. pneumoniae) induced PLA (KP-PLA) in mainland China. A retrospective review of medical records from all patients with KP-PLA admitted to a tertiary teaching hospital over a 21-year period (1994-2015) was performed. Among 296 PLA cases with confirmed culture-positive data, K. pneumoniae was revealed as the predominant pathogen (n = 189, 63...
December 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27902401/involvement-of-camp-receptor-protein-in-biofilm-formation-fimbria-production-capsular-polysaccharide-biosynthesis-and-lethality-in-mouse-of-klebsiella-pneumoniae-serotype-k1-causing-pyogenic-liver-abscess
#16
Qin Ou, Jinming Fan, Dejian Duan, Li Xu, Jie Wang, Dongsheng Zhou, Huiying Yang, Bei Li
The global regulator cAMP receptor protein (CRP) has been shown to be required for the full virulence and/or for the expression of virulence determinants in a wide set of bacterial pathogens. In this work, the crp mutant as well as the complemented mutant was constructed from a wild-type Klebsiella pneumoniae capsular serotype K1 strain causing the primary pyogenic liver abscess. The phenotypes of wild-type strain, crp mutant and complemented mutant were characterized systematically. It was disclosed that K...
January 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/27895128/characterization-of-the-pathogenicity-of-streptococcus-intermedius-tyg1620-isolated-from-a-human-brain-abscess-based-on-the-complete-genome-sequence-with-transcriptome-analysis-and-transposon-mutagenesis-in-a-murine-subcutaneous-abscess-model
#17
Noriko Hasegawa, Tsuyoshi Sekizuka, Yutaka Sugi, Nobuhiro Kawakami, Yumiko Ogasawara, Kengo Kato, Akifumi Yamashita, Fumihiko Takeuchi, Makoto Kuroda
Streptococcus intermedius is known to cause periodontitis and pyogenic infections in the brain and liver. Here we report the complete genome sequence of strain TYG1620 (genome size, 2,006,877 bp; GC content, 37.6%; 2,020 predicted open reading frames [ORFs]) isolated from a brain abscess in an infant. Comparative analysis of S. intermedius genome sequences suggested that TYG1620 carries a notable type VII secretion system (T7SS), two long repeat regions, and 19 ORFs for cell wall-anchored proteins (CWAPs). To elucidate the genes responsible for the pathogenicity of TYG1620, transcriptome analysis was performed in a murine subcutaneous abscess model...
February 2017: Infection and Immunity
https://www.readbyqxmd.com/read/27892720/association-between-chronic-pancreatitis-and-pyogenic-liver-abscess-a-nationwide-population-study
#18
Chih-Wei Tseng, Yu-Tso Chen, Cheng-Li Lin, Ji-An Liang
BACKGROUND: The relationship between chronic pancreatitis (CP) and subsequent pyogenic liver abscess (PLA) is not well understood. METHODS: We investigated the risk of PLA in patients with CP using inpatient claims data from the Taiwan National Health Insurance Program for the period 2000-2010. We identified 17,810 patients with chronic pancreatitis (CP group) and 71,240 patients without CP (non-CP group). Both cohorts were followed until a diagnosis of PLA, until they were censored from the study because of loss to follow-up, death, or termination of insurance, or until the study cut-off date of 31 December 2011...
January 4, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/27872770/herpes-simplex-virus-hepatitis-in-an-immunocompetent-host-resembling-hepatic-pyogenic-abscesses
#19
Carrie Down, Amit Mehta, Gayle Salama, Erika Hissong, Russell Rosenblatt, Michael Cantor, David Helfgott, Kristen Marks
Herpes simplex virus (HSV) hepatitis represents a rare complication of HSV infection, which can progress to acute liver failure and, in some cases, death. We describe an immunocompetent 67-year-old male who presented with one week of fever and abdominal pain. Computed tomography (CT) scan and magnetic resonance imaging (MRI) of the abdomen showed multiple bilobar hepatic lesions, some with rim enhancement, compatible with liver abscesses. Subsequent liver biopsy, however, revealed hepatocellular necrosis, HSV-type intranuclear inclusions, and immunostaining positive for herpes virus type 2 (HSV-2)...
2016: Case Reports in Hepatology
https://www.readbyqxmd.com/read/27854050/herpes-zoster-correlates-with-pyogenic-liver-abscesses-in-taiwan
#20
Shen Mei-Ling, Liao Kuan-Fu, Tsai Sung-Mao, Lin Ms Cheng-Li, Lai Shih-Wei
OBJECTIVE: The purpose of the paper was to explore the relationship between herpes zoster and pyogenic liver abscesses in Taiwan. METHODS: This was a nationwide cohort study. Using the database of the Taiwan National Health Insurance Program, there were 33049 subjects aged 20-84 years who were newly diagnosed with herpes zoster from 1998 to 2010 that were selected for our study, and they were our herpes zoster group. 131707 randomly selected subjects without herpes zoster were our non-herpes zoster group...
December 2016: BioMedicine
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