title: Comparative study of skin autofluorescence expression in atopic dermatitis and psoriasis: A prospective in vivo study.
abstract: OBJECTIVE
  Treatment of atopic dermatitis (AD) and psoriasis requires their differentiation from other eczematoid dermatitis and a determination of disease severity. However, both can be clinically difficult and the findings subjectively interpreted. We investigated the utility of in vivo autofluorescence (AF) measurements for diagnosis of both diseases, and determination of severity.
  
  
  METHODS
  Thirty patients with AD and 30 with psoriasis were recruited, together with sex- and age-matched patients with healthy skin. AF intensity was measured using the EcoSkin®fluorescence video dermatoscope. In AD and psoriasis patients, AF in non-sun-exposed lesional and non-lesional skin was measured. To identify the locations that reflect characteristics of AD, AF was also measured at the other sites in the patients with AD.
  
  
  RESULTS
  AD was associated with lower AF and psoriasis with higher AF intensity peaking around 620 nm. In addition, skin AF intensity of each disease was associated with severity of lesion.
  
  
  CONCLUSIONS
  Non-invasive measurement of skin AF in vivo can aid in diagnosis of AD and psoriasis as well as in treatment monitoring.
authors: Department of Dermatology, College of Medicaine, Kyung Hee University, Seoul, Korea.
authors: J H
authors: JH
authors: Yim
authors: Department of Dermatology, College of Medicaine, Kyung Hee University, Seoul, Korea.
authors: K H
authors: KH
authors: Jeong
authors: Department of Dermatology, College of Medicaine, Kyung Hee University, Seoul, Korea.
authors: M K
authors: MK
authors: Shin
mesh_terms: D000293:Adolescent; D000328:Adult; D003876:Dermatitis, Atopic / Q000000981:diagnostic imaging / Q000473:pathology*; D046169:Dermoscopy / Q000379:methods*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D008297:Male; D008875:Middle Aged; D061848:Optical Imaging / Q000379:methods*; D011565:Psoriasis / Q000000981:diagnostic imaging / Q000473:pathology*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D055815:Young Adult
keywords: 
  in vivo
  ; atopic dermatitis; psoriasis; skin autofluorescence