[Carcinogenic activity of hexachlorophene]

Albino noninbred rats were exposed to hexachlorophene (chronic inhalation of 0.1 CL50 for 12 months). The tumors detected occurred mostly in the lungs. Increased incidence of lung tumors as well as their histomorphologic pattern (not typical of spontaneous neoplasms of these animals) suggested carcinogenicity of hexachlorophene under the said conditions.