A well-demarcated, uniformly light brown, flat patch of skin, whose presence in multiples (>6) is a key feature of neurofibromatosis type 1.
An early seborrheic keratosis that appears as a flat, light brown, slightly greasy macule with a "stuck-on" appearance, often a precursor to thicker lesions.
Small, light brown macules on sun-exposed skin that characteristically darken with sun exposure and fade in the winter.
A genetic syndrome where numerous, small, dark brown lentigines are a key feature, found all over the body including non-sun-exposed areas.
A small, dark brown to black, well-defined macule that is not related to sun exposure and does not fade in winter.
A distinctive lesion consisting of a light brown café-au-lait macule with multiple, smaller, darker brown macules or papules speckled within it.
A genetic disorder characterized by dark brown to black macules on the lips, around the mouth, and on the buccal mucosa, associated with intestinal polyps.
A form of cutaneous mastocytosis presenting as reddish-brown macules that urticate (form a hive) when rubbed, known as Darier's sign.
