CPAM is often diagnosed prenatally through routine ultrasound scans, which can detect abnormal cystic structures in the fetal lungs. If a CPAM is suspected, further imaging such as fetal MRI may be performed to better characterize the lesion. Postnatally, CPAM can be confirmed through chest X-rays, CT scans, or MRI if symptoms arise or if the diagnosis was not made prenatally.
