Surgical Treatment and Prognosis of Angiosarcoma of the Scalp: A Retrospective Analysis of 14 Patients in a Single Institution

Figure 4

Comparison of the recurrence rates based on the status of deep resection margins. Kaplan-Meier plots stratified by the status of deep resection margins are shown. Only a deep excision margin was significantly related to the recurrence rate. The hazard ratio for local recurrence was increased to 24.15 (95% CI: 2.12–275.24) when the periosteum was preserved, as compared to when the periosteum and bone were resected ( value <0.05). CI: confidence interval.