Remitting Seronegative Symmetrical Synovitis with Pitting Edema (RS3PE)

RS3PE is an acute-onset form of arthritis causing symmetrical joint pain with pitting swelling of the hands and feet, typically self-limited and often responsive to low-dose corticosteroids.

The exact underlying cause isn't fully understood, but it is considered an inflammatory condition, occasionally associated with an underlying malignancy, which is part of why thorough assessment at diagnosis matters.

Symptoms include sudden, symmetrical swelling with a distinctive pitting quality in the hands and feet, along with joint pain, typically in older adults, with negative antibody tests.

It usually has a good prognosis and often resolves completely with treatment, though the rare association with underlying cancer means initial screening is a sensible part of the work-up.

Low-dose corticosteroids are usually very effective and often produce rapid improvement in swelling and joint pain.

It is typically self-limited, often resolving within months, particularly with corticosteroid treatment, distinguishing it from more chronic inflammatory arthritis conditions.

RS3PE has a sudden onset, negative antibodies, and distinctive pitting swelling that typically resolves, whereas rheumatoid arthritis usually shows positive antibodies and follows a more chronic, progressive course without treatment.

See a doctor promptly for sudden, symmetrical swelling of the hands and feet, particularly in later life. A private rheumatologist can typically be seen within about two weeks.