Peripheral ameloblastoma of the maxillary sinus - Case report

P. S. Chang*, M. H. Tsai

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review


Peripheral ameloblastoma is a rare extraosseous odontogenic tumor arising from the tooth-bearing soft tissue of the mandible and maxilla. Fifty-three cases have been recorded so far. Their clinical pictures do not manifest as aggressive and invasive as the central one. Most of them are usually firm, sessile and exophytic. Peripheral ameloblastoma has the similar histologic characteristics of their counter part, mostly benign. Malignant change or distal metastasis is rare. Surgical excision with free safety margin is adequate for the treatment. We reported a rare case of left maxillary sinus tumor with the initial presention of epistaxis. The tumor was removed by left lateral rhinotomy and medial maxillectomy. Microscopic examination revealed peripheral ameloblastoma. No bony invasion was found. The postoperative coure was uneventful. No regional recurrence or distal metastasis has been found for 19 months.

Original languageEnglish
Pages (from-to)728-732
Number of pages5
JournalJournal of the Otolaryngological Society of the Republic of China
Issue number6
StatePublished - 1997
Externally publishedYes


  • Maxillary sinus
  • Peripheral ameloblastoma


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