Orgarnoid nevus is a congenital, hairless, thick lesion that typically occurs on the face or scalp. Such nevi are classified as epidermal nevi and may be present at birth or in early childhood.
Basal cell carcinoma can arise in sebaceous nevi, usually in adulthood. However, the incidence of these malignancies is now known to be lower than previously estimated. For this reason, prophylactic excision is no longer recommended.
Nevus sebaceus or sebaceous nevus (also known as an "organoid nevus") is a congenital, hairless plaque that typically occurs on the face or scalp. Such nevi are classified as epidermal nevi and can be present at birth, or early childhood, and affect males and females of all races equally.
At birth, it is observed as alopecia with a yellow patch. With age, the lesion gradually thickens.
It mainly occurs on the scalp, but can also appear on the face.
Nevus sebaceus of Jadassohn also referred to as organoid nevus, is a congenital malformation involving hamartomas of the pilosebaceous follicular unit. These growths most commonly form on the scalp, but may also appear on the forehead, face, or neck. They undergo a growth phase during puberty due to hormonal changes. In adulthood, the growths may develop secondary neoplasms within them, most commonly trichoblastoma. The treatment of these lesions is controversial, with options ranging from observation to early excision in childhood.
Congenital melanocytic nevus (CMN) is a melanocytic nevus that is either present at birth or appears during the latter stages of infancy. Nevus sebaceous has been described as the hamartomatous locus of an embryologically defective pilosebaceous unit. Here, we describe how we used the pinhole technique with an erbium-doped yttrium aluminium garnet (erbium : YAG) laser to treat nevi lesions in different patients.
Basal cell carcinoma can arise in sebaceous nevi, usually in adulthood. However, the incidence of these malignancies is now known to be lower than previously estimated. For this reason, prophylactic excision is no longer recommended.