What does melanocytic nevi of trunk mean?
What does melanocytic nevi of trunk mean?
Melanocytic nevi represent proliferations of melanocytes that are in contact with each other, forming small collections of cells known as nests. Melanocytic nevi commonly form during early childhood. Their onset is believed by some authorities to be, at least in part, a response to sun (ultraviolet) exposure.
Is melanocytic nevus curable?
Melanocytic nevi can be surgically removed for cosmetic considerations or because of concern regarding the biological potential of a lesion. Melanocytic nevi removed for cosmesis are often removed by tangential or shave excision. Punch excision can be used for relatively small lesions.
Can melanocytic nevus cancerous?
Melanoma commonly begins in the nevus, but it can develop when melanocytes that invade other tissues , such as those in the brain and spinal cord , become cancerous. When melanoma occurs in people with giant congenital melanocytic nevus, the survival rate is low.
Does melanocytic mean melanoma?
Background Moles, or melanocytic nevi, are both markers of an increased risk of cutaneous melanoma and direct precursor lesions.
Should I remove nevus?
There are several reasons that patients sometimes decide to undergo removal of a large nevus. Most of the time, the overriding reasons to remove a congenital pigmented nevus are first to reduce melanoma risk and second to improve appearance which can be fundamental to improving a patient’s overall psychosocial state.
How common is melanocytic nevus?
Small and medium-sized congenital melanocytic naevi have a very small risk, well under 1%. Melanoma is more likely to develop in giant congenital naevi (lifetime estimates are 5–10%), particularly in lesions that lie across the spine or where there are multiple satellite lesions.
What is giant congenital melanocytic nevi of the trunk?
Giant congenital melanocytic nevi of the trunk and an algorithm for treatment Giant congenital melanocytic nevi (CMN) are rare, congenital, disfiguring lesions with a risk of degeneration to malignant melanoma. Giant CMN are associated with an increased risk of malignant degeneration.
What is melanocytic nevus?
Melanocytic Nevus. Melanocytic nevus is a form of skin lesion that appears within the first two decades of life. It originates in the melanocytes (the pigment producing cells) that colonize the epidermis. This disease can appear underneath the skin or on the skin’s surface.
Is melanocytic naevus acquired or congenital?
A melanocytic naevus can be present at birth (a congenital melanocytic naevus) or appear later (an acquired naevus). There are various kinds of congenital and acquired melanocytic naevi (American spelling ‘nevi’). Who gets melanocytic naevi? Almost everyone has at least one melanocytic naevus.
What does melanocytic naevi look like?
Melanocytic naevi vary widely in clinical, dermatoscopic and histological appearance. They may arise on any part of the body. They differ in appearance depending on the body site. They may be flat or protruding. They vary in colour from pink or flesh tones to dark brown, steel blue, or black.
