Sarcoma of the prostate is uncommon. In an excellent review of the literature up to 1934, Lowsley and Kimball1 stated that they could find only 132 reported cases in which the diagnosis had been verified by microscopic evidence; 20 additional cases have been reported since, bringing the total number of authentic cases to 152.
Persons of any age may be affected. The youngest patient with this condition was an infant of 4 months; and the oldest, a man of 88 years. However, the highest incidence is encountered during the first decade of life, in which occur approximately 25 per cent of all cases. After the tenth year the disease occurs much less frequently but shows no appreciable relation to age. It is noteworthy that prostatic sarcoma is relatively most frequent in early infancy, 11 cases having been reported in patients under 1 year of age.