This presents in adolescence as a unilateral hyperpigmented patch with characteristic hypertrichosis (coarse hair growth), which is absent in the other listed patches.
While similar in color, the patches in Albright's syndrome (McCune-Albright) have characteristically irregular, jagged "coast of Maine" borders, unlike the smooth "coast of California" borders of typical café-au-lait macules.
This is a true mole, often raised or papular and present at birth, unlike the flat, macular nature of the patches in Albright's syndrome.
This congenital lesion is distinguished by its verrucous (warty) texture and often linear arrangement, which is different from the flat pigmentation of the other conditions.
A lentigo is a small, well-demarcated freckle-like spot, much smaller than the large patches characteristic of Albright's syndrome.
This is a bluish-grey patch found on the lower back of infants that fades over time, differing in color, location, and transient nature from the brown patches of Albright's syndrome.