What diseases are easily confused with skin cancer

Skin cancer is a malignant tumor that occurs on the skin, of which squamous cell carcinoma and basal cell carcinoma are the most common. Do you know what skin cancer is? Do you know what diseases are easily confused with skin cancer? Let's take a look!

Among skin cancers, basal cell carcinoma and squamous cell carcinoma must be differentiated from each other, and they must also be differentiated from seborrheic keratosis, carcinoma in situ, discoid lupus erythematosus, etc.

1. Basal cell carcinoma and squamous cell carcinoma : Basal cell carcinoma mainly occurs on the face, especially the nose, forehead, eyes, cheekbones and upper lip. The lesions develop slowly, and the local area is often not congested. The surface is crusted without keratinization, the edges are rolled up, waxy and translucent, and there is no or mild inflammatory reaction. Metastasis is rare. Squamous cell carcinoma can occur in any part of the body, especially the junction of skin and mucous membranes and the limbs, lower lip, nose, ears, back of hands and genitals. It often occurs in places with chronic skin lesions. The lesions develop quickly, with obvious local congestion, or dilated capillaries around and on the surface, obvious keratinization, high and hard edges, significant inflammatory reaction, and easy lymph node metastasis.

2. Seborrheic keratosis : Also known as senile warts, it is common in men over 50 years old, mostly on the face, neck, chest, back and back of hands. The lesions are round or oval flat wart-like rashes slightly above the skin, with a yellow, yellow-brown to coal-black color, clear boundaries, soft texture, slightly rough surface, and covered with oily scaly scabs. The number of rashes is uncertain, but often there are many. Seborrheic keratosis can exist permanently without malignant transformation. Individual lesions in a very small number of patients can develop into basal cell carcinoma. Histopathological examination can help with diagnosis.

3. Carcinoma in situ of the skin (Bowen's disease): Lesions are more likely to occur on the trunk and buttocks, and can be single or multiple. Typical cases are clearly demarcated scaly maculopapules that can gradually expand or merge with each other. The size of the lesions can vary from a few millimeters to several centimeters. The surface is covered with scales or brown to gray hard scabs after desquamation, which are not easy to peel off. The development is slow or there is no obvious change for a long time. Sometimes the central part may partially disappear or scar formation occurs, while new lesions appear nearby. Generally, it does not turn into ulcers. Histopathological examination is helpful for diagnosis.

4. Discoid lupus erythematosus : It is more common in middle-aged men and women. The lesions are small papules at the beginning, gradually expanding into plaques. They are dry in nature, with hyperkeratinized surface, dilated hair follicles, keratin plugs, atrophic spots, no ulcers, and congested edges. Those that occur on the face are distributed in a butterfly shape. Erythrocyte sedimentation rate, rheumatoid factor, antinuclear antibodies, and tissue pathology can help identify them.

5. Keratoacanthoma : It is more common in middle-aged men, mostly on the face, especially the cheeks and nose, and rarely on the limbs and trunk. The lesion is a solid hemispherical tumor standing on the skin, like a light red acne or a nodule similar to the skin color, with raised edges and a crater-shaped center, containing a keratinous scab. The disease develops rapidly, but it will no longer develop after it grows to a diameter of about 2 cm. It will shrink and heal naturally within 2 to 6 months, leaving an atrophic scar.

7. Metastatic skin cancer : It is caused by the metastasis of primary cancer in other organs to the skin. It is usually multiple and has symptoms and signs of primary cancer in other organs.

The above is the introduction of "What diseases are easily confused with skin cancer?" Do you have some understanding? Experts suggest: If you have abnormal symptoms, please go to the hospital in time to avoid delaying the disease. If you have other questions, please consult online experts, they will answer your questions.

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