CTICasesCongenital Pulmonary Airway Malformation (CPAM), Stocker Type 1
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Imaging findings
CT chest and intraoperative photograph in a pediatric patient demonstrate a large, well-defined, multi-cystic lung lesion in the left lower lobe base, consistent with Stocker Type 1 CPAM.
Key takeaways
Formerly known as congenital cystic adenomatoid malformation (CCAM), CPAM is a benign congenital developmental anomaly of the lower respiratory tract. Stocker Type 1 is the most common form, characterized by one or more large cysts (measuring more than 2 cm) lined by pseudostratified ciliated columnar epithelium. Surgical resection is typically curative and prevents recurrent infection or late malignant transformation.
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