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Melanoma is a type of cancer that develops in melanocytes, which are the cells that produce melanin, the pigment responsible for skin color.
Melanoma can also occur in other parts of the body, such as the eyes and mucous membranes. It typically manifests as an abnormal growth or mole on the skin, often appearing asymmetrical with irregular borders and varied colors.
Melanoma is considered the most serious type of skin cancer because it can spread rapidly to other parts of the body if not detected and treated early. Factors such as excessive sun exposure, a history of sunburns, fair skin, and a family history of melanoma can increase the risk of developing this disease.
Here are some common types as below:
- Superficial spreading melanoma
- Nodular melanoma
- Lentigo maligna melanoma
- Acral lentiginous melanoma
- Amelanotic melanoma
- Desmoplastic melanoma
Following are the procedure steps:
Screening and Detection: Melanoma can often be detected during routine skin examinations performed by a healthcare professional. Additionally, individuals are encouraged to perform regular self-examinations to monitor their skin for any changes in moles or the appearance of new lesions.
Diagnosis: If a suspicious lesion is found during screening or self-examination, a biopsy is typically performed to confirm the presence of melanoma. During a biopsy, a sample of the suspicious tissue is removed and sent to a laboratory for examination under a microscope by a pathologist. This helps determine the presence of cancerous cells and the type of melanoma.
Staging: Once melanoma is diagnosed, staging tests may be performed to determine the extent of the disease and whether it has spread to other parts of the body. Staging may involve imaging tests such as CT scans, MRI scans, PET scans, or sentinel lymph node biopsy.
Treatment: Treatment for melanoma depends on various factors, including the stage of the disease, the location of the tumor, and the individual's overall health.
Treatment options may include: 1. Surgery:
Surgical removal of the melanoma and surrounding tissue is often the primary treatment for early-stage melanoma. In some cases, lymph nodes may also be removed if there is evidence of spread.
2. Immunotherapy:
Immunotherapy drugs help boost the body's immune system to fight cancer cells. Examples include checkpoint inhibitors like pembrolizumab and ipilimumab.
3. Targeted therapy:
Targeted therapy drugs are designed to target specific genetic mutations present in melanoma cells, such as BRAF inhibitors (e.g., vemurafenib, dabrafenib) and MEK inhibitors (e.g., trametinib).
4. Radiation therapy:
Radiation therapy may be used to kill cancer cells or relieve symptoms in cases where surgery is not possible or to target specific areas where the cancer has spread.
5. Chemotherapy:
Traditional chemotherapy is less commonly used for melanoma but may be recommended in certain situations, such as advanced or metastatic disease.
Follow-Up Care: After treatment, regular follow-up appointments are important to monitor for any signs of recurrence or new melanomas. This may involve physical examinations, imaging tests, and blood tests.