Abstract
BACKGROUND: Cutaneous angiosarcoma, a rare malignant tumor, is associated with high mortality and poor prognosis. OBJECTIVE: This study aimed to analyze the clinicopathologic features of cutaneous angiosarcoma and identify the prognostic factors influencing survival. METHODS: Medical records of patients diagnosed with cutaneous angiosarcoma between January 1995 and March 2023 were retrospectively reviewed. Demographic data, clinicopathologic features, and treatment modalities were analyzed to evaluate the correlation with overall survival (OS) and progression-free survival (PFS). A total of 70 patients were included in the study. RESULTS: Their mean age at diagnosis was 71 years (range, 41-91 years). Of them, 57 (81.4%) were males. Five-year OS and PFS rates were 29.0% and 10.7%, respectively. In univariate analysis, a mass in the frontal area of the scalp showed significant associations with poorer PFS (hazard ratio [HR], 1.95; 95% confidence interval [CI], 1.07-3.55; p=0.029) and poorer OS (HR, 2.42; 95% CI, 1.22-4.80; p=0.011). Mass size exceeding 3 cm had a notable impact on PFS (HR, 3.41; 95% CI, 1.32-8.82; p=0.011) and remained a significant independent adverse prognosticator in multivariate analysis (HR, 4.55; 95% CI, 1.22-16.99; p=0.024). CONCLUSION: Cutaneous angiosarcoma is characterized by an unfavorable prognosis, with a larger mass size identified as an independent prognostic factor.