Cutaneous angiosarcoma: a single-institution experience.

BACKGROUND: Cutaneous angiosarcoma (CAS) is a rare, aggressive vascular sarcoma with a poor prognosis, historically associated with 5-year overall survival (OS) rates between 10 and 30 %.

METHODS: This is a single-institution retrospective review of patients treated for CAS from 1999-2011. Demographics, primary tumor characteristics, treatment, and outcomes were analyzed.

RESULTS: A total of 88 patients were identified (median age 70 years and 57 % female). Median tumor size was 3 cm. Median follow-up was 22 months. The 5-year OS and recurrence-free survival (RFS) were 35.2 and 32.3 %, respectively; median was 22.1 months. Also, 36 patients (41 %) received surgery alone, 7 (8 %) received XRT alone, and 41 (47 %) received surgery and XRT. Of the 67 of 88 patients who were disease-free after treatment, 33 (50 %) recurred (median of 12.3 months). Surgery alone had the highest 5-year OS (46.9 %) and RFS (39.9 %) (p = ns). Four presentation groups were identified: (1) XRT-induced, n = 30 (34 %), 26 of 30 occurred in females with a prior breast cancer, (2) sporadic CAS on head and neck (H/N), n = 38, (3) sporadic CAS on trunk/extremities, n = 13, and (4) Stewart-Treves n = 7. Those with trunk/extremity CAS had the highest 5-year OS (64.8 %), with H/N CAS having the worst 5-year OS (21.5 %). On MV analysis, only tumor size <5 cm correlated with improved OS (p = 0.014).

DISCUSSION: In this large series, there appears to be a better overall prognosis than historically reported, especially in Stewart-Treves and CAS on trunk or extremities. While surgery alone was associated with better OS and RFS compared with other treatment modalities, this was not statistically significant. Tumor size was a significant prognostic factor for OS.