Sir.—We would like to compliment Rawlings et al1 for their contribution to the Radiological case of the month and we support the idea of covering common illnesses in this journal department. However, we would beg to differ about the pathophysiology in this case. Occasionally an apparently straightforward case brings to light ill-defined pathophysiology, especially in our subspecialty of neonatology.
We have been involved in the review of all roentgenographic cases of wet lung syndrome in our institution over the past two years. By our review we have observed at least three clinical presentations of wet lung syndrome: (1) infants who have had persistent tachypnea from the delivery room; (2) infants who initially had no respiratory symptoms but who subsequently developed tachypnea; and (3) infants with no respiratory symptoms who have roentgenography performed for other reasons.
The cause of roentgenographic wet lung syndrome may vary from retained fetal lung
BLOOM BT, MANNINO F, HILTON S, VAUCHER Y. Wet Lung Syndrome. Am J Dis Child. 1986;140(10):969. doi:10.1001/archpedi.1986.02140240015004