PMC4290069_01
Contrast enhanced computed tomography (CECT) chest showing a well-defined cystic lesion measuring 4 x 3 cm in the right lung lower lobe with a thin wall that shows enhancement after intravenous contrast (a; dotted arrow). CECT abdomen showing cystic lesion measuring 6 x 2 cm in the ileum with a well-defined wall that also shows enhancement after intravenous contrast (b; arrow)
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F1
Contrast-enhanced computed tomography (CECT) chest showed a cystic lesion in the right lung lower lobe [Figure 1a]. CECT abdomen revealed multiple cystic lesions in the small intestine [Figure 1b].
Early static images (a, anterior; b, posterior; c, right lateral; d, left lateral) and delayed static images at 24 h (e, anterior; f, posterior) show intense area of radiotracer activity (greater than equal in intensity to the stomach activity) in the region of the distal small intestine predominantly right side (arrows). Also noted faint focus of radiotracer uptake in the right lower thoracic region, paravertebral in location that is more obvious in the early posterior and lateral views (b, c, d; dotted arrows) as well as in the delayed 24 h images (e, f; dotted arrows)
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F2
An additional area of radiotracer activity was noticed in the right lung lower lobe region after appearance of the stomach activity which became more apparent in the delayed 24 h images [Figure 2].
Cyst bound by a layer of smooth muscle and fibroconnective tissue and lined by pseudostratified ciliated columnar epithelium (respiratory; left side) along with the glandular epithelium comprising of foveolae (pits) and gastric glands (gastric mucosa; right side) (a; H and E stain, x40). Areas from the cyst showing well developed gastric mucosa (b; H and E stain, x40)
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F3
The histopathology report confirmed the presence of the gastric mucosa in these duplication cysts [Figure 3].