Acute torsion of the testis in its proper position in the scrotum is fairly common, even in new-born infants. Taylor1 reported a case of congenital torsion of the right testis in the scrotum in a new-born infant who was operated on at the age of 2 days. Beggs2 recorded the case of an infant who was operated on at the eleventh day, and Nash3 recorded one which occurred at the fifth day, and the infant was operated on at the ninth day. Many other similar cases have been reported.
Acute torsion of the undescended testis in the inguinal canal is, however, a rare occurrence. In 1913, Farr4 could find only four cases of torsion of an undescended testis in infants, under 1 year of age, reported in the literature up to that date. He reported one case of his own in an infant aged 7 months,
GEORGE J. FELDSTEIN. ACUTE TORSION OF AN UNDESCENDED TESTIS IN AN INFANT, AGED EIGHT MONTHS. Am J Dis Child. 1928;36(6):1231–1236. doi:10.1001/archpedi.1928.01920300140012