Abstract
The necessity for careful, long term, observation and treatment of patients developing these lesions is presented. This patient received Fowler''s Solution for three years during childhood and exhibited epidermoid carcinoma of the tongue at the age of twenty-one. During the following fifteen years he developed eight other primary epidermoid carcinomas and innumerable, widely disseminated, polymorphic precancerous neoplasms, many of which were keratotic. He finally died as a result of extensive metastatic dis ease.