抄録
A statistical study of 179 patients with malignant tumors diagnosed at Department of Dermatology, Tokyo Medical and Dental University from 1987 to 1992 is reported. Malignant tumors include basal cell carcinoma, squamous cell carcinoma, malignant melanoma, Paget's disease, Bowen's disease, and solar keratosis.
1) The incidence was 0.549% of the total patients in this period, and the patients with malignant tumors have increased gradually.
2) The tumors of basal cell carcinoma, squamous cell carcinoma, and solar keratosis were mostly located on the face and neck, and the tumors of malignant melanoma and Bowen's diasease were mostly on the lower extrimities.
3) One hundred and seventy three patinets were treated surgically.
4) The tumors derived from xeroderma pigmentosum were 31 cases. Three patients with malignant melanoma and 2 patients with extramammary Paget's disease were died.
