RT Book, Section
A1 Tassone, Francesco
A1 Tosti, Antonella
A1 Piraccini, Bianca Maria
A2 Tosti, Antonella
A2 Piraccini, Bianca Maria
SR Print(0)
ID 1201699518
T1 Alopecia Areata (AA)
T2 Disorders of the Hair and Nail: Diagnosis and Treatment
YR 2023
FD 2023
PB McGraw Hill
PP New York, NY
SN 9781260462470
LK dermatology.mhmedical.com/content.aspx?aid=1201699518
RD 2023/11/30
AB SUMMARYAlopecia  areata  (AA)  is  an  autoimmune  disorder  of  the  hair  follicle  (HF),  characterized  by  a  reversible  process  of  hair  loss  in  which  cytotoxic  T-lymphocytes  specifically  attack  the  follicular  unit,  due  to  loss  of  the  HF  immuno-privilege.AA  can  involve  only  some  follicles  (patchy  or  diffused  alopecia  areata)  or  the  whole  scalp  (alopecia  areata  totalis,  AAT),  or  even  all  the  body  hairs  (alopecia  areata  universalis,  AAU),  including  eyelashes,  eyebrows,  and  beard.  The  nail  unit  can  also  be  involved.