Is a compound nevus cancer?
A compound nevus is a non-cancerous type of growth made up of melanocytes. Compound nevi are usually seen in individuals of lighter skin complexion and can be found anywhere on the body.
Is a compound melanocytic nevus benign?
Typically they are light tan to dark brown, dome shaped papules that are 1-10 mm in diameter. Compound Nevi are benign proliferations of melanocytes at the epidermal-dermal junction.
Is melanocytic nevus benign or malignant?
Melanocytic nevi, if diagnosed properly, are biologically stable, completely benign lesions. However, melanocytic nevi can be found in association with melanoma.
Is a melanocytic nevus cancer?
Individuals with giant congenital melanocytic nevus have an increased risk of developing an aggressive form of skin cancer called melanoma, which arises from melanocytes.
What does a compound nevus mean?
A type of mole formed by groups of nevus cells found in the epidermis and dermis (the two main layers of tissue that make up the skin).
Is a nevus malignant?
A mole (also known as a nevus) is a benign (non-cancerous) pigmented tumor. Babies are not usually born with moles; they often begin to appear in children and young adults.
Can compound nevus turn into melanoma?
Yes — but most dysplastic nevi do not turn into melanoma. Most types of atypical moles remain stable over time. Patients with five or more dysplastic nevi are 10 times more likely to develop melanoma than individuals with no atypical moles.
What is compound nevus with architectural disorder?
The architectural disorder includes asymmetry, subepidermal fibroplasia, and a distorted rete ridge pattern with bridging between adjacent rete rides (see the image below). Compound lesions have extension of the junctional component beyond the dermal nests of melanocytes, referred to as shouldering.
What does Lentiginous compound melanocytic nevus mean?
Lentiginous proliferation of single melanocytes is absent. Compound melanocytic nevi are simply a combination of junctional and dermal nevi. Nevomelanocytic nests are located at the DE junction in discrete nests, accompanied by an underlying collection of dermal nevomelanocytes (see the image below).
What is the cause of melanocytic nevus?
Congenital melanocytic naevi are caused by localised genetic abnormalities resulting in the proliferation of melanocytes; these are cells in the skin responsible for normal skin colour. This abnormal proliferation is thought to occur between the 5th and 24th weeks of gestation.
What does a melanocytic nevus look like?
They typically appear as small brown, tan, or pink spots. You can be born with moles or develop them later. Moles that you’re born with are known as congenital moles.
Which disorders are precursors to malignant melanoma?
The precursors to melanoma are generally considered to be related to nevi of different types. Here we emphasize the dysplastic nevus, the congenital nevus, and lentigo maligna as specific lesions. The dysplastic nevus is discussed not only as a formal precursor but also as a marker of cutaneous melanoma.