Melanoma is divided into several types.

Written by Zhu Zhu

Dermatology

Updated on September 25, 2024

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Melanoma is a type of malignant tumor with a relatively high level of malignancy. The exact causes of melanoma are not very clear but may be related to multiple factors including genetics, irritation, viral infection, and immunity. Generally, there are four types of melanoma: nodular melanoma, superficial spreading melanoma, acral lentiginous melanoma, and lentigo maligna melanoma. Once melanoma occurs, it is crucial to seek prompt medical diagnosis and treatment.

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Written by Liu Jing

Dermatology

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How to diagnose melanoma

For the judgment of melanoma as a malignant tumor, it cannot solely rely on clinical experience. Instead, the skin lesion should undergo surgical excision. During the surgery, freezing can be scheduled, and the results of the freezing report will determine the scope of the surgery. The final diagnosis still depends on the paraffin section. The diagnostic gold standard is based on the pathological results, and only a pathology examination can determine whether the lesion is a malignant melanoma. Diagnosing such diseases requires extreme caution due to their high malignancy and ease of metastasis, which can endanger life. Standardized surgical excision is necessary, supplemented by chemotherapy and other methods.

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Written by Sun Ming Yue

Medical Oncology

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Does melanoma develop quickly?

If melanoma is diagnosed, this disease must not be taken lightly. It is crucial to seek timely medical treatment and not miss the optimal treatment window, thus avoiding serious consequences. The progression of melanoma is very rapid, so once detected, it should be treated as soon as possible. This approach helps to control the spread of the disease and reduce further damage to the body. Melanoma easily causes pigmentation of the skin and can lead to localized breakdown and bleeding. Generally, if the treatment is not timely, ulcers and satellite lesions may develop, thus having a greater impact. Melanoma is also a disease that tends to metastasize easily. Patients may experience nausea, vomiting, affected appetite, weakness in the limbs, and it can also affect the liver, lungs, brain, and bones, causing symptoms including bone pain. Therefore, it is imperative to detect and treat this disease early to improve the body's healing rate.

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Written by Sun Ming Yue

Medical Oncology

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Can melanoma be excised?

Melanoma, also known as malignant melanoma, generally appears on the skin or in areas such as mucous membranes and the choroid of the eye. It is the most malignant type of skin tumor and is prone to distant metastases. Early diagnosis and treatment are crucial in the initial stages of the disease. If a diagnosis of melanoma is confirmed at a formal hospital, it is recommended that patients undergo a complete excision biopsy of the lesion. If the lesion is too large to be removed, a superficial skin lesion theft or punch biopsy may also be considered.

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Written by Cui Fang Bo

Oncology

38sec

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Melanoma originates from which tissue?

Melanoma does not originate from any specific tissue, but from melanocytes. Therefore, melanoma can occur in any tissue where melanocytes are present. The most common sites for melanoma are the skin and mucous membranes. Additionally, because melanocytes are widely present throughout the body, melanoma can also occur in hollow organs such as the gastrointestinal tract, in skeletal muscles, and in the nervous system. Once diagnosed, melanoma needs to be treated promptly. The main treatments include surgery, radiation therapy, chemotherapy, targeted therapy, and immunotherapy.

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Written by Liu Gang

Dermatology

44sec

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Does melanoma need to be excised?

Melanoma is a type of malignant tumor, which mostly develops from common melanocytic nevi. Once diagnosed with this disease, surgical removal is necessary. After the surgery, a full-body examination is also required to check whether the tumor cells have metastasized. If there is metastasis, further radiotherapy or chemotherapy is needed. If melanocytic nevi appear on the body, it is crucial to handle them properly, ideally by using laser treatment or surgical removal when they are relatively small to prevent the later formation of melanoma. If the melanocytic nevi cause pain, itching, or oozing after scratching, it might be a precursor to malignancy, and formal treatment is necessary.