Congenital Mucocele of the Lacrimal Sac

DELAY in canalization of the naso-lacrimal duct is by no means uncommon, and is often associated with chronic dacryocystitis.Guerry and Kendig (1949) found 6 per cent.impatency of the duct in full-term infants, and Cassady (1948) found an imperforate membrane at birth in 84 per cent. of infants, although this usually ruptured before the onset of tears at about 31 weeks.In a further series of full-term foetuses (Cassady, 1952), he found an instance of 73 per cent.imperforate membrane at the lower end of the naso-lacrimal duct.Encysted mucocele at birth is, however, very rare.Becker (1938) found two cases in a series of 250 infants over a period of 10 years.Case Report A male infant was born on May 11, 1962, weighing 5j lb.The delivery was normal