Case report: Two case reports of cryptogenic brain abscess caused by Fusobacterium nucleatum and literature review
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SUBMITTER: Zhang Z
PROVIDER: S-EPMC10701533 | biostudies-literature | 2023 Jan
REPOSITORIES: biostudies-literature
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Project description:UnlabelledIntroductionPost-partum, post-sterilization tubo-ovarian abscess is a rare event. Fusobacterium necrophorum subspecies funduliforme, a normal flora found mainly in the oral cavity, appears to be the etiologic organism.Case presentationIn this case report, a 25-year-old Thai woman had a post-partum, post-sterilization tubo-ovarian abscess caused by the strictly anaerobic bacterium, Fusobacterium necrophorum subspecies funduliforme. Progressively severe symptoms started 3 weeks after her third vaginal delivery with a tubal sterilization on the following day. On admission, she presented with peritonitis and impending shock. An exploratory laparotomy showed a ruptured left tubo-ovarian abscess. A segment of her ileum had to be resected because of severe inflammation.ConclusionsFusobacterium necrophorum subspecies funduliforme can be an etiologic organism of a ruptured tubo-ovarian abscess following tubal sterilization in a healthy host.
| S-EPMC3533887 | biostudies-literature
Project description:Campylobacter rectus was isolated under routine anaerobic conditions (no additional hydrogen gas in the atmosphere) from an oral, nonperiodontal abscess from a patient with gastroesophageal adenocarcinoma. We report the first case of a palate abscess caused by C. rectus and review the literature and atmospheric requirements of this organism.
| S-EPMC2650927 | biostudies-literature
Project description:BackgroundBacterial hepatic abscess is a common occurrence in developing countries, which is mostly caused by Klebsiella pneumoniae and Escherichia coli. Pannonibacter phragmitetus is a Gram-negative alkali-tolerant bacillus that exists in the natural environment. Human infection by this bacterium is rare, with only four cases reported.MethodWe presented one of these cases with a bacterial liver abscess by a polymicrobial infection involving P. phragmitetus and Streptococcus oralis, with P. phragmitetus being the predominate isolate.Result and discussionOur strain of P. phragmitetus was resistant to more antibiotics than the other reported two strains. This case further verified the infectivity of P. phragmitetus.
| S-EPMC5403815 | biostudies-literature
Project description:Cerebral abscess is a potentially fatal neurosurgical condition, despite improvements in technology, new antimicrobial agents and modern neurosurgical instruments and techniques. I report the case of a 64-year-old woman, affected by a right frontobasal brain abscess, compressing the homolateral frontal horn of lateral ventricle, with a second mass partially occupying the right orbital cavity. She presented also with inflammatory sinusopathy involving the right maxillary, ethmoid and frontal sinuses. After 14 d of clinical observation and antimicrobial therapy, the patient received a computed tomography scan, which showed growth of the cerebral mass, with a ring of peripheral contrast enhancement and surrounding edema. She promptly underwent neurosurgical treatment and recovered well, except for the sight in her right eye, which remained compromised, as before the operation. This is believed to be the first case of cryptogenic cerebral abscess caused by Raoultella ornithinolityca isolated from the brain, with more than 1-year follow-up.
| S-EPMC5535322 | biostudies-other
Project description: Not available
| S-EPMC10948173 | biostudies-literature
Project description:Periodontitis is the most important cause of tooth loss in adults and is closely related to various systemic diseases. Its etiologic factor is plaque biofilm, and the primary treatment modality is plaque control. Studies have confirmed that Fusobacterium nucleatum can cause periodontitis through its virulence factors and copolymerizing effects with other periodontal pathogens, such as the red complex. Inhibiting F. nucleatum is an essential target for preventing periodontitis. The time-consuming and costly traditional periodontal treatment, periodontal scaling, and root planing are a significant burden on individual and public health. Antibiotic use may lead to oral microbial resistance and microbiome imbalance, while probiotics regulate microbial balance. Akkermansia muciniphila is a critical probiotic isolated from the human intestine. It can protect the integrity of the epithelial barrier, regulate and maintain flora homeostasis, improve metabolism, and colonize the oral cavity. Its abundance is inversely correlated with various diseases. We hypothesized that A. muciniphila could inhibit the effects of F. nucleatum and alleviate periodontitis. Bacterial co-culture experiments showed that A. muciniphila could inhibit the expression of the virulence gene of F. nucleatum. After treating gingival epithelial cells (GECs) with F. nucleatum and A. muciniphila, transcriptome sequencing and ELISA experiments on medium supernatant showed that A. muciniphila inhibited the inflammatory effect of F. nucleatum on GECs by inhibiting TLR/MyD88/NF-κB pathway modulation and secretion of inflammatory factors. Finally, animal experiments demonstrated that A. muciniphila could inhibit F. nucleatum-induced periodontitis in BALB/c mice.
| S-EPMC10352368 | biostudies-literature
Project description:A lung abscess is a necrotizing infection caused by microbiomes that lead to the loss of healthy lung tissue. The routine culture is a waste of time and yields false-negative results, and clinicians could only choose empiric therapy or use broad-spectrum antibiotics, which could significantly contribute to the problem of resistance or aggravate the condition. We report three patients with a routine-culture-negative lung abscess. The presenting symptoms included fever, cough, dyspnea, and chest pain, and a computed tomography scan revealed a lesion in the lungs. The bronchoalveolar lavage fluid and pleural fluid were tested for pathogens using metagenome next-generation sequencing (mNGS), and the results revealed Fusobacterium nucleatum and Streptococcus spp. (S. constellatus, S. intermedius) as the most represented microbial pathogens. Our data demonstrated that mNGS could be a promising alternative diagnostic tool for pathogen detection, and the pathogen lists indicate that it will be important to focus on the Streptococcus genus rather than the dominant Streptococcus spp. in terms of co-infection of pathogen determined by shotgun mNGS.
| S-EPMC10358748 | biostudies-literature
Project description:BackgroundK. pneumoniae liver abscess (KPLA) mostly involves the right lobe. We present a case of K. pneumoniae caudate liver abscess with invasive liver abscess syndrome (ILAS) was rarely identified.Case presentationA 53-year-old man with elevated glycated hemoglobin with chills, rigors and a fever of five days. The patient presented with tachycardia and fever. Physical examination revealed tenderness over the right abdomen was elicited. In particular, the inflammatory markers were markedly elevated, and computerized tomography (CT) showed pulmonary abscess, pulmonary embolism and caudate liver abscess. The patient's sequential organ failure assessment (SOFA) score was 10 points. Klebsiella pneumoniae was isolated from sputum, urine and blood. With the suspicion of liver abscesses, ILAS and sepsis. The patient was successfully treated with antibiotics. He returned to close to his premorbid function.ConclusionK. pneumoniae caudate liver abscess was rare. This is the first detailed report of K. pneumoniae caudate liver abscess with invasive liver abscess syndrome. Patients with cryptogenic K. pneumoniae liver abscess are advised to undergo an examination of intestinal barrier function. The study indicates that in patients with K. pneumoniae liver abscess, a caudate liver abscess size of ≤ 9.86 cm² may be characteristic of those suitable for conservative treatment of invasive liver abscess syndrome.
| S-EPMC11264778 | biostudies-literature
Project description:BackgroundPorphyromonas pogonae was first reported in 2011 from polymicrobial infections in central bearded dragons. Human infections caused by P. pogonae remain rare, with only four cases published in the PubMed database. Herein, we present an unusual Chinese case of the thoracoabdominal wall abscess with sepsis caused by P. pogonae and review the clinical manifestations, diagnostic evaluation, and clinical outcome of the case.Case presentationA 62-year-old female with sinusitis but no diabetes mellitus presented with fever, tenderness under an abdominal mass, and paroxysmal stabbing pain in the chest after receiving augmentation mammoplasty. Cultures of blood and pus yielded P. pogonae, and a diagnosis of sepsis with an abscess in the chest and abdominal wall was made. After repeated debridement and appropriate meropenem antibiotic treatment, the patient was successfully treated and discharged home.ConclusionsWe report the first human case of P. pogonae causing sepsis in a patient with an abscess in China. The identification of P. pogonae should be considered if the strain grows well under either anaerobic or microaerobic conditions and exhibits strong β-hemolysis with fluorescence. This study retrospectively reviewed patients' infection diagnosis, clinical treatment, and prognosis to enhance awareness of the risk of P. pogonae infection.
| S-EPMC10133661 | biostudies-literature
Project description:Backgroundgastric wall abscess is a rare pathology that is often hard to diagnose and is often associated with poor prognosis. Herein, we report a case of Gastric wall abscess that we managed to treat by endoscopy without the need for surgery which is the usual treatment of choice.Clinical dataa 50 years old female presented with Epigastric pain. Complete blood count revealed Leukocytosis, neutrophilia and an elevated C-reactive protein. Abdominal CT scan showed a small hypodense area with rim wall enhancement in the pyloric canal. Gastroscopy and endoscopic ultrasound guided drainage was performed and the abscess was drained, content sent for pathology evaluation. Patient was discharged home on antibiotics.ConclusionGastric wall abscess is a rare but important differential diagnosis of Epigastric pain. Endoscopic Ultrasound is the modality of choice to diagnose it. Endoscopic drainage is associated with reduced mortality and morbidity (Soga et al., 2014) [2].
| S-EPMC8888984 | biostudies-literature