ABSTRACT

The upper and lower extremities are in frequent movement and often make contact with the surroundings. One of the most commonly encountered presentations in the clinical setting is a skin rash that presents as a linear streak on the upper and lower extremities. The forearms often rest upon various surfaces, leaving the forearm susceptible to linear rashes with a patchy distribution limited to the medial junction of the volar and extensor forearm surfaces. Bilateral involvement of the forearms has been reported due to occupational contact dermatitis from ethylene oxide that was used to sterilize green surgical cotton gowns. A bilateral nummular rash on the posterior thighs in school-aged children is very suggestive of an allergy to metal in the bolts in certain types of seats. The thighs are often covered by articles of clothing, rashes may occur from the items within the pockets of the clothes.