This is a below knee amputation specimen from the left lower limb of a 3 year old male. The swelling was on the plantar aspect of the left foot and extending to the medial surface. The lesion was apparently present since early infancy (since birth??). The initial biopsy was reported as “Spindle cell sarcoma”. The final impression was an Infantile Fibrosarcoma. There were sweeping fascicles of spindle cells with “herringbone” pattern, interspersed with lymphocytes. Mitotic activity was also noted, though not uniform.
