Retrospective analysis of 10 congenital teratoid cysts of the mouth floor.

PURPOSE: To analyze the clinicopathology of the teratoid cyst of the floor of the mouth and the time for surgical treatment. METHODS: The incidence, manifestations, histology, treatment methods and prognosis of 10 patients treated in our department between April 2000 and May 2008 were reviewed. RESULTS: The lesions occurred almost exclusively in neonates and children. It appeared as mobile, cystic solid and well-defined lesions. It frequently caused difficulty in feeding, breathing and even more affecting growth and development because of its special location. Histology indicated that squamous, respiratory and /or gastrointestinal epithelium constituted basic structure of teratoid cyst. Complete surgical extirpation was the only treatment of choice. It was not routinely necessary to do the operation immediately unless the cyst oppressed the airway of the patients. There had been no recurrence of the lesion during follow-up. CONCLUSION: Teratoid cysts have great impact on the patients due to its specific location, although it is a cystic disease. B-type ultrasonography, CT and MRI are helpful to the diagnosis. Early complete excision is mandatory with good prognosis. Supported by Research Fund of Science and Technology Commission of Shanghai Municipality (Grant No. 08DZ2271100). [ABSTRACT FROM AUTHOR]