Figure 7b. Hypertrophic scar in the foot of a 37-year-old woman. (a, b) Sagittal T1-weighted image (a) and short inversion time inversion recovery image (b) demonstrate an elongated low-signal-intensity mass (*) that has arisen in the skin on the plantar aspect of the foot. (c) Photomicrograph (H-E stain) at low power shows the dense collagenous content of the lesion, which accounts for its low signal intensity in a and b; a disorganized spindled fibroblastic cell proliferation oriented in a predominantly horizontal direction, deep to the epidermis (E); vertically oriented vessels (*); and the absence of thick keloid-like collagenous bands.