๐ ็ธฝ็ฎ้ ๏ฝ ๐ ่ฑๆๅๆ๏ผๆฌ็ฏ๏ผ ๏ฝ ๐ ๅฎๆด็ฟป่ญฏ ๏ฝ โญ ็ฒพ่ฏ็ญ่จ
Tapered fracture
Tapered fracture
Clinical features The development of tapered hairs is associated with any process that suddenly inhibits cellular division in the hair matrix such as that which follows use of cytotoxic agents or intense radiotherapy while simultaneously precipitating anagen effluvium. However, it has recently been reported that cytotoxic drugs act on the hairs, inducing tapering of the proximal hair shaft and premature entry of the follicle into telogen, conflicting with the conventional view that affected hair follicles continue in anagen.1 The resulting hair, in this defect, becomes progressively thinner and flattened, is very susceptible to fracture, and a โpencil pointingโ appearance is characteristic.2