No.	Age	Year presented	Sex	Hypophayngoscopy	Treatment	Status
1	3	2010	F	Internal opening in apex of pyriform sinus with pus	External excision of tract with endoscopic diathermy of internal opening	No recurrence
2	4	2011	F	Positive	Neck exploration with endoscopic diathermy	No recurrence
3	16	2011	M	Positive	Neck exploration, left hemithyroidectomy, endoscopic diathermy	No recurrence
4	8	2010	F	Positive	Neck exploration with endoscopic diathermy	No recurrence
5	7	2009	M	Positive	Neck exploration with endoscopic diathermy	No recurrence

Abbreviations: CT, computerized tomography; I&D. incision and drainage; MRI, magnetic resonance imaging.