Which skin condition is described as raised or flat areas with colored and irregular borders?

• A. Psoriasis
• B. Melanoma
• C. Eczema
• D. Basal Cell Carcinoma

Answer: (B)

Irregular borders with color variation in a pigmented skin lesion point to melanoma, which can appear either flat (a patch) or raised. The mix of colors—brown, black, tan, red, or blue—and the uneven, jagged edge reflect uneven growth of pigment cells and potential invasion into deeper layers. This combination is a warning sign for a skin cancer that can spread if not evaluated promptly.

By comparison, psoriasis shows well-defined red plaques with silvery scales and usually a uniform color; eczema presents as itchy, inflamed patches with ill-defined borders; basal cell carcinoma often appears as a pearly, skin-colored or pink bump with a smooth or rolled border and may have telangiectasia, but color is typically not multicolor with irregular borders.