Statistical Surveys on Solitary Tumor of the Face

Abstract

Statistical surveys on patients with a solitary tumor of the face seen in our clinic from 1979 to 1986 revealed the following:
(1) The total number of patients with a solitary tumor of the face accounted for 693, and among these cases, a high incidence were seen in naevus pigmentosus, seborrheic keratosis and atheroma.
(2) Forehead, eyelids and cheeks were frequently involved in the seborrheic keratosis, and the center of the face, such as eyelids and nose, were frequently involved in basal cell carcinoma.
(3) The incidence in women was higher in case of naevus pigmentosus and senile keratosis, while it was lower in cases of seborrheic keratosis.
(4) Age distribution in case of seborrheic keratosis was over 40 years old and the highest peak was in the 7th decade of life.
(5) The distribution of malignant tumors was frequent in those on an advanced age.