TERATOMAS may appear anywhere in the body, although they show a predilection for the poles. They are found most frequently in the sacrococcygeal and anorectal regions.1 Ewing2 states that sacrococcygeal teratoid tumors are solid, cystic, large, nodular, congenital tumors lying at the lower end of the spinal column in front of the sacrum and coccyx. They project below, displacing the anus forward, and may extend over the dorsal surface of the sacrum and the coccyx. A definite connection with the bone may be seen. One third of the subjects are born dead, and 90 per cent die in the first few days.
Congenital tumors of the sacrococcygeal region occur once in 34,582 births, and teratomas make up only a small per cent of these.3 Chaffin4 reports that 75 per cent of these tumors appear in females. Riker and Potts5 report a series of 6 cases,