title: Actinomycosis of the knee.
abstract: We report a case of actinomycosis presenting as a knee swelling in a 34 year-old man. Knee actinomycosis poses a diagnosis challenge to clinicians as it is rare, often mimics knee tuberculosis and culture of the causative microbes is technically difficult. The classic microscopic appearance of this Gram-positive bacteria often forms the basis of diagnosis.
authors.affiliation: Department of Orthopaedics.
authors.forename: Mohd Imran
authors.initials: MI
authors.lastname: Yusof
authors.forename: Abdul Halim
authors.initials: AH
authors.lastname: Yusof
authors.forename: Md Salzihan Md
authors.initials: MS
authors.lastname: Salleh
authors.forename: Azian
authors.initials: A
authors.lastname: Harun