PMC3580929_01
CT scan of the neck showed a multiloculated fluid density lesion with enhancing septae in the left parapharyngeal space, extending from the level of mandible up to C7 vertebral level.
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CT scan of the neck (Figure 1) showed a multiloculated fluid density lesion with enhancing septae in the left parapharyngeal space, extending from the level of mandible up to C7 vertebral level.
Surgical specimen showing cyst with fibrous cord tracking inferiorly up to the superior mediastinum.
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The mass was completely excised (Figure 2).
Histopathological examination revealed multiple cystic spaces lined by cuboidal to squamous epithelium. The cyst contained numerous cholesterol clefts with subepithelium showing fibrocartilagenous tissue, foreign body corpuscles, and Hassall's corpuscles.
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fig3
The cyst contained numerous cholesterol clefts with subepithelium showing fibrocartilagenous tissue, foreign body corpuscles, and Hassall's corpuscles thereby diagnosed as a thymic cyst (Figure 3).