angiosarcoma in hemangioma/vascular malformation
Malignant change in a benign vascular tumor is exceedingly rare.
See also
angiosarcomas
hemangiomas
vascular dysplasias (vascular malformations)
arteriovenous hemangiomas
intramuscular capillary hemangioma
References
Nord KM, Kandel J, Lefkowitch JH, Lobritto SJ, Morel KD, North PE, Garzon MC. Multiple cutaneous infantile hemangiomas associated with hepatic angiosarcoma: case report and review of the literature. Pediatrics. 2006 Sep;118(3):e907-13. PMID: 16880251
Rossi S, Fletcher CD. Angiosarcoma arising in hemangioma/vascular malformation: report of four cases and review of the literature. Am J Surg Pathol. 2002 Oct;26(10):1319-29. PMID: 12360047