RT Book, Section A1 Castelo-Soccio, Leslie A1 Patel, Deepa A2 Kang, Sewon A2 Amagai, Masayuki A2 Bruckner, Anna L. A2 Enk, Alexander H. A2 Margolis, David J. A2 McMichael, Amy J. A2 Orringer, Jeffrey S. SR Print(0) ID 1161326444 T1 Hair Shaft Disorders T2 Fitzpatrick's Dermatology, 9e YR 2019 FD 2019 PB McGraw-Hill Education PP New York, NY SN 9780071837798 LK dermatology.mhmedical.com/content.aspx?aid=1161326444 RD 2024/10/07 AB AT-A-GLANCEHair shaft disorders associated with hair breakage include trichorrhexis nodosa, trichoschisis, pili torti, trichorrhexis invaginata, and monilethrix.Hair shaft disorders associated with unruly hair, but none or little hair breakage, include uncombable hair syndrome, wooly hair, Marie Unna hereditary hypotrichosis, and hypotrichosis.Other hair shaft disorders that don’t distinctly fall into either of the above categories are loose anagen syndrome and pili annulati.