Читать книгу Hemangioma. Questions & Answers - Дмитрий Романов - Страница 3

1. What is infantile hemangioma?

Infant (“infantile”) hemangioma (infantile hemangioma) is a benign vascular tumor that develops from the endothelial tissue. Its outstanding feature is the probability of appearance in infants during their first months of life and the ability to involute during following years.

Superficial infantile hemangioma in the left zygomatic region.

Сombined infantile hemangioma in the forehead.

2. Is hemangioma a tumor?

According to the classification of the International Society for the Study of Vascular Anomalies (International Society for the Study of Vascular Anomalies – ISSVA) infantile hemangiomas are vascular tumors. They are characterized by the uncontrolled growth due to endothelium cells division. It is impossible to determine exactly when and how big hemangioma will grow.

3. Can a hemangioma become malignant?

No. Infantile hemangioma is a benign vascular tumor. She does not show signs of malignancy.

4. What is endothelium?

Endothelium is a layer of thickened cells of mesenchymal origin, lining the inner walls of blood and lymphatic vessels, as well as of the heart. It provides contraction and expansion of blood vessels, growth of new blood vessels (angiogenesis), coagulation, and also carries respiratory and nutrient metabolism.

Difference Between Mesothelium and Endothelium

5. What is mesenchyme?

This is a generic term defining population of primitive tissue layer cells that have certain concordance, but will produce different tissue cells in the future (blood cells, connective and muscular tissue cells etc.)