Which form of skin cancer appears with features like uneven shape, size, and/or color?

The form of skin cancer that presents with characteristics such as uneven shape, size, and/or color is Malignant Melanoma. This type of cancer often arises from existing moles or skin lesions and can display a variety of colors including shades of brown, black, or tan, alongside uneven borders and asymmetrical shapes.

These irregular features are significant warning signs of melanoma and differentiate it from other skin cancers. In contrast, squamous cell carcinoma and basal cell carcinoma typically exhibit more uniform characteristics in terms of color and shape, and wheals are not a form of cancer, but rather a result of allergic reactions or skin irritations. Recognizing the distinct features of malignant melanoma is crucial for early detection and treatment, making it essential for skin care professionals to be aware of these signs.