PMC2779312_01
Computed tomographic scan of the abdomen with contrast enhancement. A huge calcified cystic mass is located in the retroperitoneal space on the left side.
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F1
The mass extended to the pancreatic tail and its apex was abutting the heart (Fig. 1).
Macroscopic appearance of the lesion. The cyst walls are thick and calcified with an irregular red inner surface.
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F2
Calcified materials and thick yellowish pus were drained from the cyst (Fig. 2).
(A) Glandular epithelium is lined by tall columnar ciliated cells (hematoxylin-eosin stain, x200). (B) Surfactants secreted by type II pneumocytes (arrow) (Papanicolau stain, x200).
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F3
II pneumocytes were observed by special staining (Fig. 3). In the cystic contents, many WBC and necrotic materials were found but there were no microorganisms in culture study.