Antenatal ultrasound findings in cystic adenomatoid malformation

Abstract

A case of congenital cystic adenomatoid malformation of the lung is presented with prenatal ultrasound findings. The present case appears to be the third instance reported in which the diagnosis was made antenatally by ultrasound, and the first which resulted in a live birth, although the patient succumbed to pulmonary hypoplasia.

Congenital Cystic Adenomatoid Malformation of the Lung: A Case Report and a Brief Review

“…Polyhydramnios has also been reported in a few cases. [10][11][12] This is probably due to compression of the esophagus and/or excessive secretion of fluid from the affected lung into the amniotic fluid. 11,12 Decreased absorption of lung fluid by the hypoplastic malformed lungs might be contributory.…”

“…6 Respiratory function is compromised by pulmonary hypoplasia and compression of the thoracic viscera. 10 There is a tendency for the cystic mass to expand progressively after birth, leading to the trapping of air. 13 Even though CCAM generally involves only one lobe, involvement of multiple lobes and both sides has been reported.…”

“…The usual indication for ultrasound is the sudden onset of polyhydramnios. 10,16,17,18 Diaphragmatic hernia can be ruled out by demonstration of an intact diaphragm, and if doubt remains, by an amniogram. 6,19 Other conditions in the differential diagnosis include pulmonary sequestration, bronchogenic and enteric cysts, and mediastinal teratoma.…”

Cystic adenomatoid malformation: antenatal demonstration

“…Sonography at that time revealed At autopsy, the fetus was markedly hydropic. The lower lobe of the left lung was massively enlarged (1 00 [2,3].…”

“…It has been found in all lobes and is associated with hydramnios, placental edema, and fetal hydrops [2][3][4] …”