Figure 1
Mild pseudo‑boutonnière appearance of the index finger due to progressive stiffness and subtle digital deformity.
Figure 2
Magnetic resonance imaging showing a hypodermal fibrous cord along the radial and palmar aspects of the proximal phalanx (arrows), bifurcating distally into two slips inserting on the base of the middle phalanx. The radial neurovascular bundle is displaced in a characteristic pattern without encasement (arrowhead).
Figure 3
Ultrasound showing a superficial hyperechoic digital cord (arrows).