Treatment Options for Hemangiomas

Introduction to Hemangiomas

The American Academy of Pediatrics recommends that the primary treatment approach for hemangiomas should be based on risk stratification, with observation for low-risk lesions and early intervention for high-risk lesions that may cause complications or permanent disfigurement 1
Infantile hemangiomas (IHs) are vascular neoplasms characterized by abnormal proliferation of endothelial cells and aberrant blood vessel architecture, distinct from vascular malformations which are structural anomalies 2
Congenital hemangiomas are present at birth and come in two varieties: rapidly involuting (RICH) and noninvoluting (NICH) 2
Lesions previously called "cavernous hemangiomas" are usually deep IHs or venous malformations 3
Kasabach-Merritt phenomenon is associated with other vascular neoplasms like kaposiform hemangioendothelioma and tufted angioma, not with infantile hemangiomas 3

Most infantile hemangiomas undergo spontaneous involution, with 90% of IH involution complete by 4 years of age 4
The involution process appears as a gradual change in color from red to milky-white or gray, with lesions flattening and shrinking from the center outward 4
Even after involution, residual changes such as telangiectasias, redundant skin, or scarring may remain 4

High-risk hemangiomas requiring prompt intervention include lesions causing or threatening life-threatening complications, functional impairment, pain, bleeding, or permanent disfigurement 5
Segmental facial or scalp hemangiomas, periocular hemangiomas that may impair vision, large facial hemangiomas, and segmental lumbosacral or perineal hemangiomas are considered high-risk 1

After identifying a high-risk IH, clinicians should facilitate evaluation by a hemangioma specialist as soon as possible 1
In settings where a hemangioma specialist is not readily available, telemedicine triage or consultation using photographs can be helpful 4
Low-risk hemangiomas should be monitored periodically to assess for growth and potential complications 4
Parental education about the natural history of hemangiomas and potential residual changes is essential 4

Delaying referral for high-risk hemangiomas can result in missed opportunities for intervention and prevention of complications 7
Misdiagnosis between different vascular anomalies can lead to inappropriate treatment 2
Underestimating the psychological impact of visible hemangiomas, particularly on the face 4