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PubMedDate not supplied

[LIVER ABSCESS].

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Humans↗
PubMed1996

Ribotyping to differentiate Fusobacterium necrophorum subsp. necrophorum and F. necrophorum subsp. funduliforme isolated from bovine ruminal contents and liver abscesses.

Differences in biological activities (hemagglutination, hemolytic, leukotoxic, and virulence) and ribotypes between the two subspecies of Fusobacterium necrophorum of bovine ruminal and liver abscess origins were investigated. Hemagglutination activity was present in all hepatic, but only some ruminal, strains of Fusobacterium necrophorum subsp. necrophorum. Ruminal F. necrophorum subsp. necrophorum had low leukotoxin titers yet was virulent in mice. Fusobacterium necrophorum subsp. funduliforme of hepatic or ruminal origin had no hemagglutination activity, had low hemolytic and leukotoxic activities, and was less virulent to mice. For ribotyping, chromosomal DNAs of 10 F. necrophorum subsp. necrophorum and 11 F. necrophorum subsp. funduliforme isolates were digested with restriction endonucleases (EcoRI, EcoRV, SalI, PstI, and HaeIII) and examined by restriction fragment length polymorphisms after hybridizing with a digoxigenin-labeled cDNA probe transcribed from a mixture of 16 and 23S rRNAs from Escherichia coli. The most discriminating restriction endonuclease enzyme for ribotyping was EcoRI. The presence or absence of two distinct bands of 2.6 and 4.3 kb differentiated the two subspecies. Regardless of the origin, only F. necrophorum subsp. necrophorum, a virulent subspecies, had a ca. 2.6-kb band, whereas F. necrophorum subsp. funduliforme, a less virulent subspecies, had a ca. 4.3-kb band. Ribotyping appears to be a useful technique to genetically differentiate the two subspecies of F. necrophorum.

Animals↗
PubMed1996

Intermedilysin, a novel cytotoxin specific for human cells secreted by Streptococcus intermedius UNS46 isolated from a human liver abscess.

A novel cytotoxin (intermedilysin) specific for human cells was identified as a cytolytic factor of Streptococcus intermedius UNS46 isolated from a human liver abscess. Intermedilysin caused human cell death with membrane blebs. Intermedilysin was purified from UNS46 culture medium by means of gel filtration and hydrophobic chromatography. The purified toxin was resolved into major and minor bands of 54 and 53 kDa, respectively, by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. These proteins reacted with an antibody against intermedilysin. Five internal peptide fragments of intermedilysin were sequenced and found to have 42 to 71% homology with the thiol-activated cytotoxin pneumolysin. However, the action of intermedilysin differed from that of thiol-activated cytotoxins, especially in terms of a lack of activation by dithiothreitol and resistance to treatments with N-ethylmaleimide and 5,5'-dithio-bis-(2-nitrobenzoic acid), although cholesterol inhibited the toxin activity. Intermedilysin was potently hemolytic on human erythrocytes but was 100-fold less effective on chimpanzee and cynomolgus monkey erythrocytes. Intermedilysin was not hemolytic in nine other animal species tested. Since human erythrocytes treated with trypsin were far less sensitive to intermedilysin than were the intact cells, a cell membrane protein(s) may participate in the intermedilysin action. These data demonstrated that intermedilysin is distinguishable from all known bacterial cytolysins.

Amino Acid Sequence↗
PubMed1983

Single-day drug treatment of amebic liver abscess.

This double-blind trial was initiated to test, in a controlled study, the value of single-day drug treatment of amebic liver abscess. Patients were treated with 2 g either of ornidazole or tinidazole, two newly developed 5-nitroimidazole derivatives, given in two equal doses during the course of 1 day. A success rate of over 94% in the 72 patients from both treatment groups who were followed up for 6 months demonstrates the efficacy of the single-day drug treatment.

Double-Blind Method↗
PubMed1981

[Liver abscess of appendicular origin : an always possible complication (author's transl)].

Though recognized and described in detail during the first decades of the century, liver abscess due to pyogens of appendicular origin appears to have been somewhat forgotten by contemporary physicians. This complication is still possible, however, and can disturb the postoperative course of an appendicectomy, as illustrated by the case reported. Previously of very poor prognosis, the outcome usually being fatal, this has been transformed by the availability of antibiotics and improvements in medico-surgical techniques.

Appendectomy↗
PubMedDate not supplied

[Liver abscess secondary to ingestion of foreign body. A case report].

Hepatic abscess is a serious surgical problem with a high mortality rate. The Authors report a case of a liver abscess following the migration of a toothpick from the stomach into the hepatic left lobe. Percutaneous abscess drainage combined with endoscopical removal of the foreign body were the goal treatment. The Authors stress importance of the laparoscopy-guided drainage with placement of intra-hepatic drains.

Drainage↗
PubMed2003

Isolated tuberculous liver abscesses with multiple hyperechoic masses on ultrasound: a case report and review of the literature.

Cases of isolated tuberculous liver abscess are rare. The diagnosis is often delayed or missed because of nonspecific symptoms and the disease's rare occurrence. Less than 25 cases have been documented in the imaging literature to date. This report demonstrates the difficulty in correctly diagnosing local hepatic tuberculosis. We report the case of a 56-year-old male with hepatitis C-related liver cirrhosis and end-stage renal disease treated with hemodialysis, who developed intermittent fever and hepatomegaly with unusual multiple hyperechoic hepatic lesions on ultrasound. To our knowledge, this is only the second reported case of hyperechoic mass-like hepatic lesions on ultrasound and the only case without pulmonary involvement. A greater awareness of this rare clinical entity may prevent needless surgical interventions, because the prognosis of hepatic tuberculous abscess is good for the majority of patients if diagnosed early and prompt, effective treatment is administered.

Biopsy↗
PubMed1992

Colonic immunity in patients and amoebic liver abscess.

Secretory immunoglobulin A (S-IgA), coproantibody titre (antiamoebic) and IgA, IgG, IgM immunocytes in rectal mucosa were studied in 13 patients with amoebic liver abscess (ALA) prior to and 4-6 weeks after completion of antiamoebic therapy. Ten asymptomatic Entamoeba histolytica cyst passers and 17 healthy age and sex matched volunteers served as controls. Fecal S-IgA levels and counts of IgA bearing immunocytes in mucosa were significantly higher in patients with ALA and cyst passers as compared to healthy controls and showed a significant fall after treatment. Fecal antiamoebic antibodies were high in cyst passers and in cases of ALA after treatment. Raised levels of S-IgA and IgA class immunocyte counts probably indicate a local mucosal immune response directed at containing the infection.

Antibodies, Protozoan↗
PubMed1991

Hemobilia in a child with liver abscess.

Hemobilia in children is rare and has so far been described only as a complication of blunt abdominal trauma. A case of hemobilia secondary to liver abscess treated successfully by selective arterial embolization is described. Hemobilia should be considered in any case of gastrointestinal hemorrhage before any operative intervention is undertaken.

Angiography↗