Café au lait (French for coffee with milk) spots are flat dark skin lesions with a color resembling that of coffee mixed with milk. These spots can be found in various conditions, for example, neurofibromatosis a disorder due to an abnormality on the seventeenth chromosome(s) that leads to a tendency of developing tumors, which may be benign or malignant.
Baek et al: Recurrent Massive Subcutaneous Hemorrhage in Neurofibromatosis Type 1: A Case Report. J Korean Med Sci, 2007 22(4):728–730. Go to reference
Café au lait spot in neurofibromatosis