Melanoma in situ
Melanoma in situ is a form of melanoma which is confined to the epidermis, the outermost layer of the skin. It is the earliest stage of melanoma and is also known as stage 0 melanoma.
Definition[edit | edit source]
Melanoma in situ is defined as a melanoma that is limited to the basal cell layer of the epidermis. It is a non-invasive form of melanoma, meaning it has not yet spread to other parts of the body.
Diagnosis[edit | edit source]
The diagnosis of melanoma in situ is often made through a skin biopsy, where a small sample of the suspicious area is removed and examined under a microscope. The presence of abnormal melanocytes in the epidermis confirms the diagnosis.
Treatment[edit | edit source]
The primary treatment for melanoma in situ is surgical removal of the lesion and a small amount of normal skin around it, a procedure known as wide local excision. This is usually curative, as the disease has not yet had the chance to spread.
Prognosis[edit | edit source]
The prognosis for melanoma in situ is generally excellent, as the disease is completely curable if detected and treated early. However, individuals with a history of melanoma in situ are at increased risk for developing invasive melanoma and should therefore be monitored closely.
See also[edit | edit source]
Melanoma in situ Resources | ||
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Contributors: Prab R. Tumpati, MD