RT Book, Section
A1 Lin, Steven W.
A1 Goldfarb, Noah
A2 Soutor, Carol
A2 Hordinsky, Maria K.
SR Print(0)
ID 1177006698
T1 Skin Diseases of the Arms
T2 Clinical Dermatology
YR 2017
FD 2017
PB McGraw-Hill Education
PP New York, NY
SN 9780071769150
LK dermatology.mhmedical.com/content.aspx?aid=1177006698
RD 2024/04/18
AB Many  skin  conditions  that  affect  the  arms  result  from  exposure  to  sunlight,  contact  allergens  or  irritants,  trauma,  bug  bites,  and  other  environmental  insults.  The  arms  are  within  close  reach  of  the  contralateral  hand  so  patients  can  easily  scratch  pruritic  dermatoses.  Scratching  or  trauma  may  produce  a  linear  streak  of  papules  (Koebner  reaction)  in  certain  diseases  such  as  lichen  planus  and  psoriasis.  Some  skin  diseases  have  a  predilection  for  specific  locations  on  the  arms.  While  it  is  unknown  why  many  dermatoses  have  a  tendency  to  localize  to  certain  anatomical  locations,  lesion  distribution  is  frequently  a  very  important  clue  to  establish  diagnosis.