Hemangiomahttps://en.wikipedia.org/wiki/Hemangioma
Hemangioma is a usually benign vascular tumor derived from blood‑vessel cell types. The most common form is infantile hemangioma, which is most often seen on the skin at birth or during the first weeks of life. A hemangioma can occur anywhere on the body, but it most frequently appears on the face, scalp, chest, or back. It typically grows for up to a year and then gradually shrinks as the child gets older. Treatment may be needed if the hemangioma interferes with vision or breathing or is likely to cause long‑term disfigurement.

The color of a hemangioma depends on its depth in the skin: superficial (near the skin’s surface) hemangiomas tend to be bright red, whereas deep (farther from the surface) hemangiomas are often blue or purple.

The most common types of hemangioma are infantile hemangiomas and congenital hemangiomas.
○ Infantile hemangiomas
Infantile hemangiomas are the most common benign tumors found in children. They are composed of blood vessels and are often called “strawberry marks.” They usually appear on an infant’s skin in the days or weeks after birth, grow rapidly for up to a year, and then most shrink or involute without further problems. However, some can ulcerate and form painful scabs.

○ Congenital hemangiomas
Congenital hemangiomas are present on the skin at birth, unlike infantile hemangiomas, which appear later. They are fully formed at birth and do not grow after the child is born, as infantile hemangiomas do. The prevalence of congenital hemangiomas is lower than that of infantile hemangiomas.

○ Diagnosis
Diagnosis is usually made clinically without a biopsy. Depending on the hemangioma’s location, tests such as MRI or ultrasound may be performed to determine how far the lesion extends beneath the skin and whether internal organs are involved.

○ Treatment
Hemangiomas often regress gradually over time, and many do not require treatment. However, hemangiomas in potentially disabling areas (eyelids, airways) need early intervention. For cosmetic reasons, early treatment usually yields better results.
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  • If the scalp lesion does not disappear spontaneously, excision may be considered.
  • Because of its irregular shape, malignant vascular tumors (Kaposi sarcoma) should be ruled out by biopsy.
  • Infantile hemangioma ― It starts flat and thickens over time. In many cases, it may disappear naturally, but if not, laser treatment can be considered for cosmetic reasons.
  • Child's arm; The lesions may thicken over time, making it more difficult to treat with lasers (dye laser). Starting treatment as soon as possible is preferable for better cosmetic outcomes.
  • Cherry angioma is a common benign neoplasm that develops with age.
References Hemangioma 30855820 
NIH
Hemangiomas, also known as hemangiomas of infancy or infantile hemangiomas (IH), are the most common benign tumor of infancy. They are often called strawberry marks due to their clinical appearance. Endothelial cell proliferation results in hemangiomas. Congenital hemangiomas are visible at birth whereas infantile hemangiomas appear later in infancy. Infantile angiomas are characterized by early, rapid growth followed by spontaneous involution.
 Hemangioma: Recent Advances 31807282 
NIH
The ideal treatment for a symptomatic hemangioma is often multimodal and may vary depending on the size, location, and proximity to critical structures. Medical treatments include topical beta blockers, oral propranolol, or steroid injections. Surgical resection and laser therapies may be necessary to optimize long term outcomes.
 Childhood Vascular Tumors 33194900 
NIH
Infantile Hemangioma, Congenital Hemangiomas, Pyogenic Granuloma, Tufted Angioma, Kaposiform Hemangioendothelioma, Dabska Tumor, Hemangioendothelioma, Pseudomyogenic Hemangioendothelioma, Angiosarcoma