Sections from both submitted fragments show benign non-capsulated dermal tumor formed of storiform bundles of proliferating myofibroblasts. Skin is acanthotic. No evidence of malignancy and excision of lesion looks complete.
Lower back mass.
Two soft tissue fragments, the first measured 2.5X2X1.5 cm, the second measured 2.5x1.5x0.7 cm partially covered by skin ellipse 2.3 cm. Both were totally embedded.
Lower back mass, excision: