Vascular birthmark

A vascular birthmark is a benign vascular lesion on the skin that occurs as a result of abnormal growth of capillaries, venules, or arterioles. It is an area of skin where there is a buildup of blood vessels, resulting in a bright red, maroon, or even blue pigmented lesion. Vascular birthmarks, or hemangiomas, can vary in size and shape, and their surface texture can range from smooth to bumpy. In most cases, they are vessels located close to the surface of the skin, but deeper forms can also occur, which are of additional interest to dermatologists and oncologists.

History of the disease and interesting historical facts

Vascular birthmarks have been known since ancient times and have been mentioned in medical works of various cultures. In antiquity, they were interpreted as omens foreshadowing a person’s fate. In Ancient Egypt and Ancient Rome, vascular formations were often associated with divine intervention. Modern ideas about vascular birthmarks began to form with the development of anatomy and dermatology. In the nineteenth century, thanks to advances in microscopy, it became possible to study the morphology of these formations and their pathogenesis in more detail. To better understand the disease, scientists began to use the term “hemangioma,” which has become generally accepted in medical practice.

Epidemiology

The epidemiology of vascular birthmarks shows that they occur with a frequency of approximately 1-2% among newborns. Hemangiomas are most common in children, as well as in women, which may be due to hormonal changes in their bodies. According to various studies, a predisposition to the formation of vascular birthmarks is also observed in children with low birth weight and first-borns. Vascular deformations can occur at any age, but most cases are registered in childhood, which indicates a high level of regenerative abilities of the body during this period.

Genetic predisposition to this disease

Genetic predisposition to vascular birthmarks is being studied, and to date, several mutations have been identified that are associated with the development of the disease. Research suggests that mutations in genes involved in angiogenesis – such as VEGFA, FLT1, and KDR – may contribute to abnormal vascular growth. In some cases, vascular birthmarks may be part of more complex syndromes, such as Kaposi syndrome or Niven syndrome, which is associated with multiple hemangiomas, further supporting the presence of a genetic predisposition.

Risk factors for the development of this disease

There are several risk factors that contribute to the development of vascular birthmarks, including:

• Gender: The disease is more common in women.
• Family history: Having hemangiomas in close relatives increases the risk of developing them.
• Preterm birth: Babies born prematurely often have hemangiomas.
• Low birth weight: Scientists have found that malnutrition or poor nutrition during pregnancy can also contribute to the development of the disease.
• Hormonal changes: Women experience frequent hormonal changes during pregnancy, which can cause activation of vascular formations.

Diagnosis of this disease

Diagnosis of vascular birthmarks is based on a clinical examination, where the doctor pays attention to the characteristic features of the formation. The main symptoms include:

• The appearance of a red or bluish spot on the skin.
• Slow growth of the formation, usually without pain.
• Change in color or texture of the stain.

Laboratory tests such as blood tests to rule out other possible diseases may be used to confirm the diagnosis. Radiological examinations such as ultrasound or MRI are used when it is necessary to assess the depth and extent of the disease. Differential diagnosis is important to rule out malignant processes such as sarcoma and other vascular lesions.

Treatment

Treatment of vascular birthmarks usually depends on their size, location and growth rate. In most cases, observation is all that is required, as hemangiomas tend to regress spontaneously. However, in cases of rapid growth or risk of cosmetic damage, the following methods may be used:

• General treatment: Involves observation, especially in newborns and children, in whom most hemangiomas resolve over time.
• Pharmacological treatment: Beta blockers such as propranolol are often used to shrink the lesion.
• Surgical treatment: In cases where hemangiomas are large or inflamed, they may need to be removed surgically.
• Other types of treatment: Laser therapy, cryotherapy and electrodesiccation can be used to treat superficial hemangiomas.

List of medications used to treat this disease

Among the medications used to treat vascular birthmarks, the following can be distinguished:

• Propranolol (beta blocker)
• Atenolol
• Cryotherapeutic drugs
• Lasers (eg, angiotensin II and dynamic lasers)

Disease monitoring

Monitoring of vascular birthmarks includes regular examinations by a dermatologist, especially in the first months of a child’s life. Certain control stages include assessing the growth, color and texture of the formation. The prognosis is favorable in most cases, but complications are possible, such as:

• Infections, especially with trauma to the formation.
• Psycho-emotional problems associated with cosmetic defects.
• Diseases that occur with increased size, such as ulcers or bleeding.

Age-related features of the disease

Vascular birthmarks in newborns tend to regress spontaneously, but in adolescence and adulthood, complications may be associated with hematomas, which may require a more aggressive approach to treatment. In older people, vascular lesions may present differently, as the skin's regenerative capacity declines. This requires more careful diagnosis and treatment on a case-by-case basis.

Questions and Answers

• What is a vascular birthmark?
  A vascular birthmark is a benign vascular lesion that occurs due to the abnormal growth of blood vessels on the skin.
• What causes vascular birthmarks?
  Causes include genetic predisposition, hormonal changes, and risk factors such as low birth weight.
• Does a vascular birthmark need treatment?
  In most cases, no treatment is required, but if the growth is rapid or cosmetically unsightly, medication or surgery may be used.
• What can cause complications from vascular birthmarks?
  Complications may include infections, inflammations, as well as psycho-emotional problems associated with the aesthetics of the formation.
• How is a vascular birthmark diagnosed?
  Diagnosis is based on clinical examination, laboratory and radiological studies, and differential diagnosis.