Benign smooth muscle tumours.

A series of 7748 leiomyomas of the whole body is presented. Ninety-five per cent of lesions occurrred in the female genital tract. Sixty-one of the remaining 371 were rejected because of inadequate histology or uncertainty as to exact site of origin. The 310 cases thus selected were analysed for histology, sex, race, site and age distributions. Comparisons are made between 230 skin lesions, 42 gastric lesions and 5 oral lesions. A further 43 cases of oral lesions were found in an extensive review of the world literature.