A hemangioma is a usually benign vascular tumor derived from blood vessel cell types. The most common form is infantile hemangioma, known colloquially as a "strawberry mark", most commonly seen on the skin at birth or in the first weeks of life. A hemangioma can occur anywhere on the body, but most commonly appears on the face, scalp, chest or back. Treatment of a hemangioma is usually unnecessary unless the nodule interferes with vision or breathing, or in rare cases of internal hemangiomas causes or contributes to other medical problems.
Hemangiomas are benign (noncancerous) vascular tumors, and many different types occur. The correct terminology for these hemangioma types is constantly being updated by the International Society for the Study of Vascular Anomalies (ISSVA).
- Infantile hemangioma are the most common benign (noncancerous) tumor found in children. They are made up of blood vessels,
- They are more common in girls than boys
- Sometimes, they are called "strawberry marks".
- They usually become visible on the skin of children who are 4-6 weeks old.
- They tend to grow quickly for a few weeks or months, then shrink or "involute" on their own without problems, but some can ulcerate (crust or scab), which may be painful. Depending on their location and size, they may also be disfiguring.
- Rarely, they may be related to disorders of the central nervous system or spine. They may also occur in the internal organs of the body, such as the liver, airway, or brain
- The color of the hemangioma depends on how deep it is in the skin.
- Superficial (near the skin's surface) hemangiomas tend to be bright red.
- Deep (furthest from the skin's surface) hemangiomas are often blue or purple.
- Mixed hemangiomas may have colors of both superficial and deep.
- Congenital hemangiomas are usually visible on the skin at birth, unlike infantile hemangioma, which appear later.
- They are fully formed at birth, meaning that they do not grow after a child is born, as infantile hemangiomas do.
- They are less common than infantile hemangioma.
- They can be pink to blue in color.
- They are classified based on how they shrink, or involute:
Cavernous liver haemangioma
A cavernous liver hemangioma or hepatic hemangioma is a benign tumour of the liver composed of hepatic endothelial cells. It is the most common liver tumour, and is usually asymptomatic and diagnosed incidentally on radiological imaging. Liver haemangiomas are thought to be congenital in origin. Several subtypes exist, including the giant hepatic haemangioma, which can cause significant complications.
Diagnosis is usually clinical and tests are not necessary.
Hemangiomas usually fade gradually over time, and most do not require treatment. Therapeutic options can have side effects and are avoided if possible. However, hemangiomas that may be disfiguring or that are located at sites that can cause impairment (eyelids, airway) are often treated, typically with pharmacotherapy first. Management options may include:
- Beta blockers
- Laser surgery
- "ISSVA Classification of Vascular Anomalies International Society for the Study of Vascular Anomalies" (PDF). Retrieved 11 August 2018.
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- Drolet BA, Esterly NB, Frieden IJ. Hemangiomas in children. N Engl J Med. 1999 Jul 15;341(3):173-81.
- "Infantile Hemangiomas". Retrieved 11 August 2018.
- Mulliken JB, Bischoff J, Kozakewich HP. Multifocal rapidly involuting congenital hemangioma: a link to chorangioma. Am J Med Genet A. 2007;143A(24):3038-3046.
- Funk T, Lim Y, Kulungowski AM, et al. Symptomatic Congenital Hemangioma and Congenital Hemangiomatosis Associated With a Somatic Activating Mutation in GNA11. JAMA Dermatol. 2016;152(9):1015-1020.
- Baron R. 'Liver: Masses Part I: detection and characterization'. The Radiology Assistant 2006
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