A 34-year-old woman with normal plantar fascia.In the long-axis view, a normal, uniformly hyperechoic fibrillar echo pattern can be appreciated at the proximal portion of the plantar fascia. The thickness of the plantar fascia measured at the anteroinferior border of the calcaneus was smaller than 4 mm (double-headed arrow). Note the area of the anisotropy artifact (arrowheads) just distal to the insertion site and mid-portion, because of the normal curved course of the plantar fascia.