【正文】
re are irregular low density areas, and airfluid level in it. Possible diagnosis: pulmonary bulla infection Differential diagnosis ? Pulmonary hypoplasia: ? There are some cystic like lesions at the end of the bronchi. ? Lung abscess ? The wall of the abscess is always thick, and the inner wall is irregular. Differential diagnosis ? Pulmonary sequestration: ? It is monly seen in young adults. There is no clear boundary between the normal lung tissue and sequestration lung tissue. There is an arterial supply to the sequestration tissue arising from the abdominal aorta. That’s all, thank you!