Decreased breadth of philtrum; Decreased horizontal dimension of philtrum; Decreased transverse dimension of philtrum; Decreased width of philtrum; Philtrum, Narrow; Thin philtrum
Definition:
Distance between the philtral ridges, measured just above the vermilion border, more than 2 standard deviations below the mean. Alternatively, an apparently decreased distance between the ridges of the philtrum.