enthesitis
Pronunciation: en-the-SY-tis
Inflammation at the insertion site where tendons, ligaments, or joint capsules attach to bone.
Full Definition
Enthesitis is inflammation of the enthesis, the specialized tissue where tendons, ligaments, or joint capsules insert into bone. In pediatric rheumatology, enthesitis is a hallmark feature of enthesitis-related arthritis and other spondyloarthropathies. Common sites include the Achilles tendon insertion, plantar fascia insertion at the heel, and around the patella. Clinical examination may reveal tenderness, swelling, or pain with movement at these attachment sites.
Usage
Usage note: Specify anatomical location when documenting (e.g., 'Achilles enthesitis' not just 'enthesitis').
In Context
- "Bilateral Achilles enthesitis was the presenting feature in this adolescent boy." — Initial assessment note
- "The patient's heel pain was attributed to plantar fascia enthesitis rather than mechanical causes." — Sports medicine evaluation