Figure 1From: Variable Ki67 proliferative index in 65 cases of nodular fasciitis, compared with fibrosarcoma and fibromatosisMorphological changes of nodular fasciitis. (A) Spindle cells were diffused in extensive myxoid stroma. At the margin of the tumor, the cells infiltrated the normal skeletal muscle tissue. (B) Focally, keloid like collagen bundles present in the peripheral area. (C) Extravasated erythrocytes, scattered osteoclast-like giant cells were sprinkled between the plump myofibroblasts (D) Numerous mitoses (black arrow) were present.Back to article page