Sections show ulcerated skin with dense infiltration by neutrophils, lymphocytes, plasma cells and macrophages. There is related moderate to marked dermal fibrosis. No evidence of specific granulomas. No evidence of atypia or malignancy and excision looks complete.
Post trauma chronic ulcer in middle aspect of knee.
Skin ellipse measures 13x2.5x1.8 cm, showing surface ulcer 4x2 cm with related fibrotic areas. Margins of excision ranged from 0.7 to 8.5 cm. The specimen was totally embedded.
Knee lesion, excision: