title: Streptococcus gallolyticus prosthetic joint infection associated with undiagnosed colonic malignancy.
abstract: Streptococcus gallolyticus is a group D streptococcus which was previously classified as part of the S. bovis/S. equinus complex. It is a rare pathogen in prosthetic joint infection but has been demonstrated to have a strong association with colorectal carcinoma. In this case, a patient with no symptomatology suggestive of colorectal carcinoma presented with a S. gallolyticus prosthetic joint infection. Awareness of the association prompted investigation and subsequent diagnosis of colorectal carcinoma which was successfully treated prior to two-stage revision knee replacement.
  
  
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authors.affiliation: Combined Orthopaedic and Medical Microbiology Service, Royal Berkshire NHS Foundation Trust, London Road, Reading RG1 5AN, UK. alexander.liddle@doctors.org.uk
authors.forename: Alexander D
authors.initials: AD
authors.lastname: Liddle
authors.forename: Simon
authors.initials: S
authors.lastname: Abram
authors.forename: Shabnam
authors.initials: S
authors.lastname: Iyer
authors.forename: Antonio J M D
authors.initials: AJ
authors.lastname: Andrade
mesh_terms: D000230:Adenocarcinoma / Q000150:complications / Q000175:diagnosis*; D000368:Aged; D003110:Colonic Neoplasms / Q000150:complications / Q000175:diagnosis*; D013293:Enterococcus faecalis / Q000302:isolation & purification*; D016908:Gram-Positive Bacterial Infections / Q000150:complications / Q000175:diagnosis*; D006801:Humans; D007720:Knee Prosthesis / Q000009:adverse effects*; D008297:Male; D016459:Prosthesis-Related Infections / Q000150:complications / Q000175:diagnosis*