Macules are flat, nonpalpable lesions usually < 10 mm in diameter. Macules represent a change in color and are not raised or depressed compared to the skin surface. A patch is a large macule.

Dermatosis is a generic term for a disease of the skin. When examining the skin, a dermatologist assesses distribution, morphology and arrangement of skin lesions: their number, size, and colour, …

To do that, you need to know how to describe a lesion with the associated language. This language, reviewed here, can be used to describe any skin finding. Before you can make a diagnosis of any …

Mar 6, 2023 · Terminology of Skin Lesions Lucy Liu MD

Mar 4, 2025 · Macules are flat, well-circumcised lesions up to 1 cm (0.39 inches) in diameter, while patches are similar but are larger than 1 cm. Papules are raised bumps that are up to 1 cm in …

May 7, 2024 · A patch is a larger, flat, non-palpable area of altered skin coloration or texture, while a macule is a small, distinct, flat spot on the skin that is solely a color change.

Vascular lesions: Petechiae (tiny red macules resulting from bleeding under the skin) and purpura (larger patches of similar origin) are examples of vascular lesions presenting as macules or patches.

Mar 31, 2025 · Macules and patches are flat skin lesions that differ primarily in size, with a macule being a small, flat, discolored area of skin less than 1 cm in diameter, and a patch being a larger macule …

May 30, 2025 · (Macule / Patch) A spot is a primary cell-free morphological element on the skin or mucous membranes, which is characterized by color change in a limited area. Spots are always flat …

Dec 1, 2023 · Areas of discoloration that are larger than or equal to 1 cm are referred to as patches. Certain conditions such as vitiligo are characterized by white or lighter macules or patches on the...