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Pharyngeal Retention Cysts: Radiographic Findings in Seven Patients

Courtney A. Woodfield1, Marc S. Levine1, Stephen E. Rubesin1, Igor Laufer1 and Natasha Mirza2

1 Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce St., Philadelphia, PA 19104.
2 Department of Otorhinolaryngology, Head & Neck Surgery, Hospital of the University of Pennsylvania, Philadelphia, PA.



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  		Fig. 1A. —72-year-old woman with pharyngeal retention cyst. Frontal view from double-contrast pharyngogram shows submucosal mass (arrows) completely obliterating right vallecula.

 


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  		Fig. 1B. —72-year-old woman with pharyngeal retention cyst. Lateral view from double-contrast pharyngogram also shows submucosal mass etched in white (arrows) protruding superiorly from vallecula.

 


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  		Fig. 2. —52-year-old woman with pharyngeal retention cyst. Frontal view from double-contrast pharyngogram shows smooth submucosal mass (arrows) partially obliterating left vallecula. No definite lesion was seen in vallecula on lateral view from same examination (not shown).

 


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  		Fig. 3. — 47-year-old woman with pharyngeal retention cyst. Frontal view from double-contrast pharyngogram shows small submucosal lesion etched in white (arrow) on right aryepiglottic fold. This was smallest pharyngeal retention cyst in our series.

 


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  		Fig. 4. —52-year-old woman with pharyngeal retention cyst. Frontal view from double-contrast pharyngogram shows large, slightly lobulated submucosal mass etched in white (arrows) in right vallecula.

 


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  		Fig. 5. —24-year-old woman with granular cell tumor. Frontal view from double-contrast pharyngogram shows smooth submucosal mass etched in white (arrows) in right piriform sinus. This lesion is indistinguishable from retention cyst on basis of radiographic findings. Dilatation of proximal esophagus above midesophageal stricture (not shown) caused by previous ingestion of potassium chloride tablets was also noted.

 

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