Post-Radiation Atypical Vascular Lesion

**Semantic type:** Disease or Syndrome

**Definition:** Benign vascular proliferations in the skin following external radiation. The lesions present in adults, predominantly in elderly women following radiotherapy for breast carcinoma. They consist of papules, small vesicles, or erythematous ecchymotic plaques with prominent telangiectasias. Identical skin lesions can occur after radiation for cervical carcinoma, endometrial carcinoma, ovarian carcinoma, Hodgkin lymphoma, and melanoma. There is an increased risk for subsequent development of angiosarcoma.

**Synonyms:** - AVL - Atypical Vascular Lesion - Atypical Vascular Proliferation - Benign Lymphangiomatous Papule - Benign Vascular Lesion in Previously Irradiated Skin - Post-Radiation Therapy Lymphangiectasia - Post-Radiation Therapy Lymphangioma