Juvenile laryngeal papillomatosis with pulmonary spread. Regression following transfer factor therapy.

A 6-year-old girl with a history of juvenile laryngeal papillomatosis since 6 months of age and progressing pulmonary extension of the tumor for two years was treated with transfer factor prepared from her mother. Within one month of the onset of therapy, she exhibited marked clinical improvement. A computed tomographic scan performed after four months of therapy revealed almost complete resolution of her pulmonary lesions.