What causes Naevus?

What causes Naevus?

Congenital nevi are thought to be caused by a genetic mutation, called a sporadic mutation, which develops randomly as a baby grows in the womb. The condition is not inherited.

Is a nevus benign or malignant?

Melanocytic nevi are benign neoplasms or hamartomas composed of melanocytes, the pigment-producing cells that constitutively colonize the epidermis.

Is a nevus a birthmark?

Congenital nevus (plural nevi) is simply a medical term for a mole that you’re born with. They’re a very common type of birthmark. You might also hear them referred to as congenital melanocytic nevi (CMN). A congenital nevus looks like a round or oval-shaped patch of colored skin and is usually raised.

Is nevus genetic?

Most epidermal nevus syndromes are thought to be caused by a gene mutation that occurs after fertilization of the embryo (postzygotic mutation), at an early stage of embryonic development. Affected individuals have some cells with a normal copy of this gene and some cells with the abnormal gene (mosaic pattern).

What is a giant nevus?

Giant congenital melanocytic nevus is a skin condition characterized by an abnormally dark, noncancerous skin patch (nevus) that is composed of pigment-producing cells called melanocytes. It is present from birth (congenital) or is noticeable soon after birth.

What is another name for nevus?

Nevus (plural: nevi) is the medical term for a mole.