PMC3664127_01
H&E stained sections of the intracardiac mass. 2a (50x magnification): Fibroadipose tissue surrounding a central lumen with a columnar epithelial lining. 2b (400x magnification): Residual cilia are identified on the cyst lining, consistent with respiratory epithelium. 2c (200x magnification): Nodules of cartilage embedded in loose fibroadipose tissue are present in the cyst wall.
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F2
The histologic section showed a simple cystic structure lined by ciliated, respiratory-type epithelium and surrounded by fibroadipose tissue with nodules of cartilage (Fig 2).