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Bacteroides Fragilis


  • We present what is to the best of our knowledge the first reported case of B. fragilis endophthalmitis.[ncbi.nlm.nih.gov]
  • SUMMARY OF BACKGROUND DATA: A 17-year-old boy presented with low back pain 3 months after anal dilatation.[ncbi.nlm.nih.gov]
  • Uncommonly, however, multiple hepatic abscesses caused by anaerobic bacteria are the presenting signs of unsuspected colonic cancer in the absence of liver metastases.[ncbi.nlm.nih.gov]
  • We present the case of a 74-year-old otherwise healthy male who presented with fever and right hip pain ten days after a course of intramuscular injections.[ncbi.nlm.nih.gov]
  • We present a case of a B fragilis bacteraemia and endocarditis caused by seeding of left ventricular thrombus formed secondary to severe left ventricular dysfunction.[ncbi.nlm.nih.gov]
Intermittent Fever
  • Intermittent fever was noted despite treatment with ceftriaxone and doxycycline. On Day 15 of hospitalization, blood culture revealed B. fragilis, which prompted further investigation of the source of intraabdominal and pelvic infection.[ncbi.nlm.nih.gov]
  • Abstract Hypercoagulability is one of the causes of portal vein and superior mesentery vein thrombosis.[ncbi.nlm.nih.gov]
  • This article describes a case of Bacteroides fragilis endocarditis associated with portal and superior mesenteric venous thrombosis in a patient without preexisting valvular heart disease and review the cases of endocarditis due to this anaerobic bacterium[ncbi.nlm.nih.gov]
  • B fragilis bacteraemia of unknown source should caution the physician to search for an intra-abdominal focus, such as thrombosis of the portal vein or mesenteric vein.[ncbi.nlm.nih.gov]
  • Abdominal ultrasonography showed thrombosis of the portal vein without collateral blood flow or portal hypertension and computed tomography scan revealed portal and superior mesenteric vein thrombosis. 5.[slideshare.net]
Left Ventricular Dysfunction
  • We present a case of a B fragilis bacteraemia and endocarditis caused by seeding of left ventricular thrombus formed secondary to severe left ventricular dysfunction.[ncbi.nlm.nih.gov]
  • He sustained bilateral open tibia and fibula fractures in the setting of being exposed to water contaminated with raw sewage.[ncbi.nlm.nih.gov]
  • Osteomyelitis involving long bones, which may occur after trauma or fracture, may also involve Bacteroides ( 35 ). A fairly recent review by Brook comments on the reports of the recovery of anaerobic organisms from infected bones in children ( 36 ).[doi.org]
Right Shoulder Pain
  • A 43-year-old Japanese woman was evaluated in the outpatient department for right shoulder pain and fever, which began 5 days earlier. MRI of the right shoulder revealed a high-intensity area deep in the right trapezius muscle.[ncbi.nlm.nih.gov]
Knee Pain
  • Abstract A 67-year-old African-American male presented with nausea, vomiting, diarrhea, fever, and knee pain. Four sets of blood cultures were collected and resulted in the growth of Bacteroides fragilis in all anaerobic bottles.[ncbi.nlm.nih.gov]
Hip Pain
  • We present the case of a 74-year-old otherwise healthy male who presented with fever and right hip pain ten days after a course of intramuscular injections.[ncbi.nlm.nih.gov]
Foot Pain
  • The patient also developed right foot pain associated with cyanotic discolouration. On examination, he was cachectic and his right foot was pulseless, cold and blue in colour. Echocardiogram showed three intraventricular echo densities.[ncbi.nlm.nih.gov]


  • METHODS: We compared the presence of the bft gene in mucosal samples from colorectal neoplasia patients (cases, n 49) to a control group undergoing outpatient colonoscopy for CRC screening or diagnostic workup (controls, n 49).[ncbi.nlm.nih.gov]
Liver Biopsy
  • Repeated ultrasound-directed liver biopsies yielded a diagnosis of multiple abscesses. Bacteroides fragilis was grown from the liver specimen and the patient responded well to metronidazole treatment.[ncbi.nlm.nih.gov]


  • Prompt antibiotic treatment and joint drainage are the cornerstones of treatment.[ncbi.nlm.nih.gov]
  • Such infections, although still rare, do exist and tend to complicate treatment.[ncbi.nlm.nih.gov]
  • A transcriptionally regulated response was observed using quantitative RT-PCR after metronidazole and hydrogen peroxide treatment, with all three genes being upregulated under stress conditions.[ncbi.nlm.nih.gov]
  • After treatment with imipenem, pus drained from the pleural cavity yielded an identical isolate that had become highly resistant to imipenem and co-amoxiclav.[ncbi.nlm.nih.gov]
  • We report a 68-year-old Japanese woman who developed pyomyositis caused by Bacteroides fragilis following treatment for multiple myeloma. There are only two cases of pyomyositis associated with multiple myeloma in the literature.[ncbi.nlm.nih.gov]


  • This page contains information about ICD-10 code: N400. 3-8-2014 · Read about bladder cancer symptoms, signs, treatment, prognosis, survival rates, …ICD-10: Z11. Pylori) Infection B96.[refrigerator-tabriz.com]


  • Abstract We recently diagnosed and treated an unusual case of primary endocarditis due to Bacteroides fragilis, for which no underlying etiology was found.[ncbi.nlm.nih.gov]
  • Defining a microbial etiology for colon cancer has key implications as colon cancer is a major public health problem being the second leading cause of cancer death in the United States in women and men.[grantome.com]
  • Bacterial and viral etiology of childhood diarrhea in Ouagadougou, Burkina Faso. BMC Pediatr. 2013; 13 : 36[ DOI ][ PubMed ] 4. Caceres M, Zhang G, Weintraub A, Nord CE.[jjmicrobiol.com]
  • Animals Bacterial Toxins/immunology* Bacterial Toxins/metabolism Bacteroides fragilis/immunology* Bacteroides fragilis/pathogenicity Carcinogenesis/pathology* Cell Line, Tumor Colon/cytology Colon/immunology* Colon/microbiology Colorectal Neoplasms/etiology[ncbi.nlm.nih.gov]
  • Anaerobic bacteremia is usually polymicrobial in etiology and has a high death rate ( 4 ). In this case, both bacterial isolates were resistant to the empirical treatment.[wwwnc.cdc.gov]


  • Author information 1 Institute for Medical Microbiology and Epidemiology of Infectious Diseases, University of Leipzig, Leipzig, Germany. reiner.schaumann@medizin.uni-leipzig.de Abstract This study was designed to investigate the killing activity of levofloxacin[ncbi.nlm.nih.gov]
  • Critical questions about the epidemiology of chronic, subclinical human colonization with ETBF and its impact on the biology of the colon need to be addressed.[ncbi.nlm.nih.gov]
  • Future epidemiologic and clinical studies are needed to understand the role of ETBF and TXCD in human gastroenteritis. Copyright 2015. Published by Elsevier B.V.[ncbi.nlm.nih.gov]
  • Abstract Strains of Bacteroides fragilis that produce an extracellular 20-kD heat-labile toxin have been epidemiologically associated with diarrheal disease.[ncbi.nlm.nih.gov]
  • Gastroenterology, Inst. of Gastroenterology of Guangdong Province, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China. 2 State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology[ncbi.nlm.nih.gov]
Sex distribution
Age distribution


  • The pathophysiology of B. fragilis in spondylodiscitis remains largely unclear because of its rare occurrence.[ncbi.nlm.nih.gov]
  • Pathophysiology Although AGNB perform beneficial functions as part of the GI flora, they are also consummate opportunistic pathogens that can cause serious infections, typically in synergistic infections in combination with other anaerobic as well as[emedicine.medscape.com]


  • Author information 1 Department of Infection Prevention and Control, Tokyo Medical University Hospital, Tokyo, Japan.[ncbi.nlm.nih.gov]
  • These observations may help to devise future preventative treatments of premature infants against NEC.[ncbi.nlm.nih.gov]
  • Thus, our data establish that B. fragilis colonization is able to prevent B. henselae damages through PSA.[ncbi.nlm.nih.gov]
  • Current approaches to prevention of colon cancer are cumbersome and underutilized due to their expense and inconvenience.[grantome.com]
  • She made a full recovery and began treatment with a herbal oestrogen derivative to prevent early menopause. BMJ Publishing Group Ltd (unless otherwise stated in the text of the article) 2018. All rights reserved.[ncbi.nlm.nih.gov]

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