R. NICKBRYANMDS. JAMESZINREICHMD
Benign tumors of the hypopharynx are very rare, the most common being the fibrolipoma and the leiomyoma. Hypopharyngeal cysts have seldom been reported in the English-language literature; therefore, their incidence is uncertain. Ferguson,1 in 1987, reported 1 case of infected retention cyst within the left aryepiglottic fold. Four cases of cysts in the piriform sinus were subsequently reported: 2 in the right side2,3 and 2 in the left side.3,4 Our case involved a lesion that arose in the left postcricoid region, and it would appear from our review that no lesion of this type in this region has been previously reported in the English-language literature. The resected specimen consisted of a 2-cm cystic mass with clear fluid accumulation. The histopathologic diagnosis was a retention cyst lined by simple cuboidal or low columnar epithelium. The postcricoid region is close to the arytenoid of the larynx, which is known to abound with secretory glands.5 Repeated physical stimulation during swallowing of food may have obstructed a secretary gland near the arytenoid of larynx, leading to the development of a retention cyst.
Diagnosis Quiz Case 2. Arch Otolaryngol Head Neck Surg. 2001;127(1):86. doi: