Which condition is indicated by dark, brown patches on the skin that may appear uneven in texture or raised?

The condition indicated by dark, brown patches on the skin that may appear uneven in texture or raised is malignant melanoma. Melanoma is a serious type of skin cancer that often manifests as an irregularly shaped mole or a dark patch on the skin. These patches can vary in color from brown to black and may develop varying degrees of elevation or irregular borders. The identification of such changes is critical for early detection and treatment, as malignant melanoma can spread to other parts of the body if not addressed promptly.

Basal cell carcinoma, on the other hand, usually appears as a shiny or waxy bump, often in sun-exposed areas, and does not typically present as dark patches. Dermatitis generally manifests as red, inflamed, and itchy skin rather than brown patches, while rosacea primarily causes redness and visible blood vessels, which differ significantly from the dark patches characteristic of melanoma. Understanding these distinctive traits is vital for recognizing potential skin cancers and distinguishing them from other skin conditions.