Melanoma is a relatively common skin disease. Many people don’t know much about it. When melanoma develops to a certain point, it is very harmful to the human body. Knowing the early symptoms of melanoma can help detect melanoma early. So what are the early symptoms of melanoma ? The following is a detailed answer from relevant experts. 1. Lentigo maligna melanoma has atrophy of the epidermis, with more atypical melanocytes in the basal layer, and invades the dermis downward. The pigment-eating cells in the tumor cells or in the interstitial matrix contain a considerable amount of melanin. This is a common early symptom of melanoma. 2. Superficial spreading melanoma: irregular proliferation of epidermal protrusions downwards, atypical nevus cell nests can be seen at the dermal-epidermal junction and in the dermis, in addition to epithelial cell-type and spindle cell-type melanocytes, sometimes a few paget-like melanocytes can be seen in the upper part of the epidermis. Inflammatory cell infiltration is obvious in the dermis. 3. Nodular melanoma: atypical melanocytes proliferate vertically downward and invade the dermis, but not the epidermis. Epithelial cell-type melanocytes are often arranged in alveoli; spindle cell-type melanocytes are similar to fibroblasts, sometimes arranged in bundles. 4. Acral lentiginous nevus melanoma has thickened epidermis, atypical melanocyte nests containing a large amount of pigment are located in the lower part of the epidermis, spindle-shaped melanocytes are common, paget-like melanocytes can also be seen in the upper part of the epidermis, and chromatophagocytes can be seen in the dermal papilla. The above is an introduction to the early symptoms of melanoma. If you experience the above symptoms, you must go to the hospital for treatment in time. If you want to know more about melanoma, please consult an online expert. For more information, please visit the melanoma disease special topic at http://www..com.cn/waike/hssl/ or consult an expert for free. The expert will then give a detailed answer based on the patient's specific situation. |
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