case_images: PMC4510255_01
case_images: CT thorax sagittal image showing hypodense lesion in the left lower lobe posteriorly with resolving infiltrates within. Arrow: pulmonary vein branch.
case_images: CRIPU2015-743452.001.jpg
case_images: PMC4510255_01_CRIPU2015-743452.001.jpg
case_images: fig1
case_images: CT angiogram of thorax showed 9 cm well-defined area of low attenuation in the left lower lobe (Figure 1) with infiltrates inside.
case_images: CT angiography shows dedicated pulmonary artery and vein supplying the hypolucent area. Small cysts can be appreciated within the hypolucent area.
case_images: CRIPU2015-743452.002.jpg
case_images: PMC4510255_01_CRIPU2015-743452.002.jpg
case_images: fig2
case_images: This lesion demonstrated a dedicated pulmonary artery and pulmonary vein (Figure 2); these vessels were emerging from the hilar region.
case_images: CT scan 4 months ago showing infiltrates in the left lower lung.
case_images: CRIPU2015-743452.003.jpg
case_images: PMC4510255_01_CRIPU2015-743452.003.jpg
case_images: fig3
case_images: Review of previous chest X-rays and computed tomography (CT) of the thorax from the time of his previous episodes of pneumonia revealed various degrees of consolidation in left lower base in this particular area (Figure 3).
case_images: Gross photograph showing multiple air filled microcysts at periphery of lung (white arrow) and a larger cyst (black arrow).
case_images: CRIPU2015-743452.004.jpg
case_images: PMC4510255_01_CRIPU2015-743452.004.jpg
case_images: fig4
case_images: On gross examination, a relatively well-demarcated lesion with a 1.5 x 1.5 cm thin walled cyst with inspissated mucus within and multiple air filled microcysts at the peripheral aspect of the cyst was noted (Figure 4).
case_images: Higher power view of largest cyst (black arrow) showing columnar ciliated epithelium and adjacent smaller cyst (white arrow) with similar lining.
case_images: CRIPU2015-743452.005.jpg
case_images: PMC4510255_01_CRIPU2015-743452.005.jpg
case_images: fig5
case_images: Microscopic examination revealed larger cyst with columnar ciliated epithelium (Figure 5) and dispersed bronchiole-like structures within the alveolated parenchyma (Figure 6).
case_images: Numerous bronchiole-like structures (black arrows).
case_images: CRIPU2015-743452.006.jpg
case_images: PMC4510255_01_CRIPU2015-743452.006.jpg
case_images: fig6
case_images: Microscopic examination revealed larger cyst with columnar ciliated epithelium (Figure 5) and dispersed bronchiole-like structures within the alveolated parenchyma (Figure 6).