title: Atypical "allergic crease".
abstract: BACKGROUND
  The allergic crease (nasal crease) is a transverse line, common among patients who suffer from allergic rhinitis. Although it is a very prevalent condition, the skin manifestations which accompany this condition have been only sparsely reported.
  
  
  METHODS
  We describe an 18-year-old man with allergic rhinitis, who developed cornified papules along an allergic crease. Dermoscopic examination revealed oval, slightly raised, gray, sharply demarcated papules. Histopathology revealed seborrheic keratosis like hyperplasia, accompanied by horn cysts.
  
  
  CONCLUSIONS
  To our knowledge, cornified papules have not been reported previously along the allergic crease. Considering the fact that allergic rhinitis is a common chronic condition of childhood, increased awareness of the skin manifestations which accompany this condition is essential.
authors: Department of Dermatology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel.
authors: Yuval
authors: Y
authors: Ramot
authors: Alex
authors: A
authors: Maly
authors: Abraham
authors: A
authors: Zlotogorski
authors: Krassimira
authors: K
authors: Nanova