Kanerva L, Jolanki R, Plosila M, Estlander T
Contact Dermatitis. 1984 Mar;10(3):158-62. doi: 10.1111/j.1600-0536.1984.tb00023.x.
A 35-year-old machinist developed hand eczema from contact allergy to dibutylthiourea, a compound found in a paint and glue remover. Light and electron microscopy of his positive patch test was consistent with allergic contact dermatitis, showing Langerhans cell-mononuclear cell contacts in the epidermis.