PT  - JOURNAL ARTICLE
AU  - Cristina Macía-Villa
AU  - Sandra Falcao
AU  - Marwin Gutierrez
AU  - Julio Medina
AU  - Hilde  Berner Hammer
AU  - Eugenio  De Miguel
TI  - Peritenon Extensor Tendon Inflammation in Psoriatic Arthritis Is an Enthesitis-related Lesion
AID  - 10.3899/jrheum.180856
DP  - 2019 Feb 01
TA  - The Journal of Rheumatology
PG  - jrheum.180856
4099  - http://www.jrheum.org/content/early/2019/05/24/jrheum.180856.short
4100  - http://www.jrheum.org/content/early/2019/05/24/jrheum.180856.full
AB  - Objective To analyze the association between enthesitis, synovitis, and peritenon extensor tendon inflammation (PTI) in psoriatic arthritis (PsA). Methods PsA patients with swelling of metacarpophalangeal joints were included. Greyscale and power Doppler (PD) were used for synovitis and PTI ultrasound identification. Madrid Sonographic Enthesis Index (MASEI) was used for enthesitis assessment. PD activity was evaluated using PD item of MASEI and PD Outcome Measures in Rheumatology (OMERACT) definition. Results Synovitis had no association with enthesitis. PTI was associated with PD MASEI and PD OMERACT. Only PD OMERACT showed a positive correlation with PTI. Conclusion In PsA, PTI is associated to enthesitis, as opposed to synovitis.