case_images: PMC11832461_01
case_images: (A) Nine years ago, chest CT revealed a mass in the left lower lobe measuring approximately 74 mm x 61 mm. (B) Nine years ago, contrast-enhanced chest CT showed a clearly defined feeding artery (red arrow) supplying the left lower lobe mass, with a maximum diameter of approximately 65 mm x 43 mm, a normal proximal diameter of about 12 mm, indicating vascular dilation of at least 3.6 times; mural thrombosis within the vascular lumen (yellow arrow) and calcified plaques in the vessel wall (green arrow) were also observed. (C, D) Nine years ago, post-aortic angiography volume rendering (VR) and maximum intensity projection (MIP) images clearly depicted the feeding artery originating from the thoracic aorta (red arrow), confirming the diagnosis of intralobar pulmonary sequestration complicated by a supplying artery aneurysm. (E, F) One year ago, chest x-ray and CT showed a left lower lobe mass measuring approximately 112 mm x 82 mm, indicating significant enlargement compared to nine years earlier. (G) At this visit, chest CT revealed the left lower lobe mass measuring approximately 137 mm x 96 mm, further increasing in size compared to one year ago. (H, I) At this visit, contrast-enhanced chest CT and MIP images displayed a giant aneurysm of the sequestrated lung and its supplying artery (red arrow), with the aneurysm's maximum diameter measuring approximately 123 mm x 100 mm, with a normal proximal diameter of about 13 mm, indicating vascular dilation of at least 7.7 times. Mural thrombosis within the vascular lumen (yellow arrow) and calcified plaques in the vessel wall (green arrow) were also visible. (J) One month post-surgery, follow-up chest CT revealed small pleural effusion (red arrow), with the yellow arrow indicating the spleen.
case_images: fsurg-12-1481819-g001.jpg
case_images: PMC11832461_01_fsurg-12-1481819-g001.jpg
case_images: F1
case_images: CT revealed lung infection (Figure 1A). Contrast-enhanced CT (Figure 1B) and aortography (Figures 1C,D) indicated the mass had a feeding artery originating from the thoracic aorta, with a thick mural thrombus and calcified plaques in the arterial wall. One year ago, the patient sought treatment for a lung infection, with a chest x-ray and CT scan (Figures 1E,F) showing the left lower lobe mass enlarged to approximately 112 mm x 82 mm. C-reactive protein at 233.28 mg/L (normal range <2.87 mg/L). CT results (Figure 1G) indicated the mass further enlarged to approximately 137 mm x 96 mm compared to one year prior. Enhanced CT and MIP images (Figures 1H,I) showed the aneurysm's widest part measuring approximately 123 mm x 100 mm, with a normal proximal diameter around 13 mm, indicating vascular dilation of at least 7.7 times, along with a thick mural thrombus and calcified plaques. One month post-operation, a follow-up CT (Figure 1J) revealed complete removal of the left lower lobe mass, with a small amount of pleural effusion observed, and the patient was recovering well.