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Oligoarthritis (from Greek oligos - 'few') is defined as arthritis affecting two to four joints during the first six months of disease.[1]


Two subcategories are recognized:[1][2]

  • Persistent oligoarthritis: Affecting not more than 4 joints throughout the disease course
  • Extended oligoarthritis: Affecting a total of more than 4 joints after the first 6 months of disease


  1. ^ a b Petty RE, Southwood TR, Manners P, et al. (February 2004). "International League of Associations for Rheumatology classification of juvenile idiopathic arthritis: second revision, Edmonton, 2001". J. Rheumatol. 31 (2): 390–2. PMID 14760812. 
  2. ^ Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. ISBN 1-4160-2999-0.