Oligoarthritis

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

Types
Two subcategories are recognized:


 * 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