1. Vascular Anomalies Classification: Recommendations From the International Society for the Study of Vascular Anomalies
2. Weiss SW, Goldblum JR, Folpe AL. Benign tumors and tumor-like lesions of blood vessels. In: Weiss SW, Goldblum JR, Folpe AL, editors. Enzinger and Weiss's Soft Tissue Tumors. Philadelphia, PA: Mosby Elsevier; 2007. p.633.
3. Calonje E. Vascular tumors: tumors and tumor-like conditions of blood vessels and lymphatics. In: Elder DE, editor. Lever's Histopathology of the skin. Philadelphia, PA: Lippincott Williams & Wilkins; 2009. p.1007
4. Haskell HD, Magro CM, Crowson AN. soft tissue neoplasms of the skin and superficial subcutis. In: Crowson AN, Magro CM, Mihm MC, editors. Biopsy interpretation of the skin. Philadelphia, PA: Lippincott Williams & Wilkins; 2010. p.302.
5. Requena L, Kutzner H. Histology of cutaneous vascularization and classification of cutaneous vascular anomalies. In: Requena L, Kutzner H, editors. Cutaneous soft tissue tumors. Philadelphia, PA: Lippincott Williams & Wilkins; 2015. p.312