The origin of flaps was frontonasal flap in 58 cases, bilobed flap in 67 cases, reforming rhomboid flap in 152 cases, nasolabial flap in 118 cses, forehead falp in 33 cases.

• 皮瓣来源于额鼻皮瓣58例，双叶皮瓣67例，改良菱形皮瓣152例，鼻唇沟皮瓣118例，额正中皮瓣33例。