Ewing's sarcoma of the hand

A 54-year-old woman presented with a 12-month history of pain and a firm fixed mass on the dorsum of the right hand (figure 1). Physical examination revealed a firm circumferential swelling of the hand. The laboratory findings were within normal limits. Figure 1 Clinical view showing swelling of the right hand. A plain radiograph (figure 2A) revealed a lytic, expansible lesion involving the third metacarpal with poorly defined margins and an associated …