a 16 yo male presented yesterday with a new onset rash.
the rash is diffuse on the whole back, consists of pink-red elevated lines, that are 0.2 cm wide and up to 10 cm lenth. (see picture)
most lines are parallel to the ribs
Indeed yes, but different individuals express the reaction differently and rarely nonitchy too.My diagnosis was on morphology.Dermographism to what on sat on like old chairs with jute could also elicit a linear response sans itching.