Pigmented Villonodular Synovitis

Pigmented villonodular synovitis is a rare condition in which the tissue lining the inside of a joint grows abnormally, most often affecting the knee or other large joints.

Common symptoms: it usually causes inflammation, pain, and stiffness in the affected joint, with a sensation of swelling that can appear gradually and limit movement.

Common causes: its exact origin is not fully clarified; it is linked to abnormal growth of the joint lining rather than to a single identifiable cause.

Which specialist treats it? The orthopedist evaluates the joints and provides guidance on the studies needed to clarify the condition. If a joint swells or hurts persistently, discussing it with this professional helps clarify the origin.