[Transverse nasal groove. A rare embryological error in nature].
Two patients presented with a transverse groove located between the lower third and upper two-thirds of the nose since birth. The alar and triangular cartilage attach themselves in a linear transverse fashion, the so called nasal line. It is important to recognize the nasal line as a localizing factor for milia, cysts and comedones. The nasal line is rather easily overlooked but awareness of its existence allows one to quickly confirm that it is not a rarity. We propose an embryological origin.
Wimmershoff
M B
MB
Dermatologische Klinik der Universität Regensburg, Franz-Josef-Strauss-Allee 11, 93053 Regensburg.
Hohenleutner
U
U
Landthaler
M
M
D000368:Aged; D002356:Cartilage / Q000002:abnormalities / Q000196:embryology; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D009666:Nose / Q000002:abnormalities* / Q000196:embryology