Two children with xeroderma pigmentosum developing two different types of malignancies simultaneously.

Patients with xeroderma pigmentosum (XP) are highly sensitive to ultraviolet radiation and prone to develop multiple skin malignancies. We report two children under 6 years of age with XP who each developed two histologically different types of malignancies simultaneously. We conclude that it is of importance to be aware of the possibility of multiple malignancies of different types, even in young children.