Allergic contact dermatitis from methylisothiocyanate in soil disinfectants

Observations on nine patients with occupational dermatitis from methylisothiocyanate (MITC) lead to the following conclusions: 1. MITC causes primarily a toxic dermatitis, but as a strong sensitizer it induces sensitization as well. 2. Cross reactions between MITC and benzylisothiocyanate, the active agent of Sulbentin antimycotics, were not seen. 3. In patient a MITC acid burn on one foot and leg caused systemic poisoning from absorption with reversible damage to the liver parenchyma.