PMC9597882_01
Computed tomography scan showed a 2.2x5.8 cm thin-walled water-attenuated cystic lesion in retroperitoneal region (red circle).
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CT showed an ovoid, well-defined, and heterogeneous lesion, measuring 2.2x5.8 cm in her left adrenal area (Figure 1).
(A) An ovoid, well-defined, and homogeneous cystic lesion. (B) Mucous filled the cystic lesion. (C) Histopathologic section revealed the cyst lined with tall columnar epithelium and cyst wall containing thin smooth muscle bundles, seromucous glands, and mature hyaline cartilage. (Haematoxylin and eosin stain, original magnification, x200).
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Grossly, the cystic lesion measured 60 mm in diameter (Figure 2A). Cystic walls were about 1-2 mm thick with a smooth interior surface (Figure 2B). Pathologically, characteristic pseudostratified columnar epithelium and cartilage were identified in histological specimens (Figure 2C).