Induction Paclitaxel Followed by Concurrent Paclitaxel and Radiation Therapy for Cutaneous Angiosarcoma

Inclusion Criteria: * Histologically or cytologically confirmed cutaneous angiosarcoma. * Measurable disease defined as lesions that can be accurately measured in at least one dimension (longest diameter to be recorded) as ≥ 5 mm with CT scan or ≥ 5 mm by clinical exam at the time of diagnosis * Currently receiving or planning to receive weekly paclitaxel for 12 weeks at 80 mg/m\^2 weekly. The patient must be able to begin radiotherapy within the first 7 weeks of paclitaxel treatment. * At least 18 years of age. * ECOG performance status ≤ 1 * Women of childbearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control, abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she must inform her treating physician immediately. Men treated or enrolled on this protocol must also agree to use adequate contraception prior to the study, for the duration of the study, and one month after completion of the study * Ability to understand and willingness to sign an IRB approved written informed consent document (or that of legally authorized representative, if applicable). Exclusion Criteria: * Patients deemed ineligible for curative therapy by the treating medical oncologist, radiation oncologist, or surgeon. * A history of other malignancy ≤ 3 years previous with the exception of basal cell or squamous cell carcinoma of the skin which were treated with local resection only or carcinoma in situ of the cervix. * Currently receiving any investigational agents. * Current central nervous system disease or distant metastatic disease not including local-regional lymph nodes or satellite lesions. Patients with known brain metastases must be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events. * Grade 2 or greater neuropathy * A history of allergic reactions attributed to compounds of similar chemical or biologic composition to paclitaxel or other agents used in the study. * Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, or cardiac arrhythmia. * Pregnant and/or breastfeeding. Women of childbearing potential must have a negative pregnancy test within 14 days of study entry. * HIV-positive patients whose CD4+ T-cell count is \< 350 cells/mcL.