consequences of a misdiagnosed case


  • Augusto César Sette Dias Universidade Federal de Minas Gerais
  • Evandro Neves Abdo Universidade Federal de Minas Gerais
  • Leandro Napier de Souza Centro Universitário Newton Paiva
  • Ricardo Santiago Gomez Universidade Federal de Minas Gerais
  • Marcelo Drumond Naves Universidade Federal de Minas Gerais


Ameloblastoma, Odontogenic tumor, Mandibular tumor


The present report shows the case of an ameloblastoma located in the mandibular incisors which was misdiagnosed both as a periapical alteration of endodontic origin as well as a periodontal alteration, treated over a 4-year period in which no regression of the lesion could be observed. The patient then was referred to the Stomatology clinic of School of Dentistry, Universidade Federal de Minas Gerais. Clinical and radiographic exams and an incisional biopsy produced the diagnosis of an ameloblastoma. The patient then underwent surgery to remove the tumor, taking into consideration the limits found within prior studies in the literature. Such a case exposes an extensive mutilation which occurred as a consequence of a mistake made in the initial identification of the tumor, thus generating a delay in the definitive treatment.


Download data is not yet available.


Barnes L, Eveson JW, Reichart P, Sidransky D. Pathology & genetics. head and neck tumours. World Health Organization Classification of Tumours. IARC Press, Oxford, p 296-301, 2005.

Sampson DE, Pogrel MA. Management of mandibular ameloblastoma: the clinical basis for a treatament algorithm. J Maxilofac Surg 1999;57:1074-7.

Olaitan AA, Arole G, Adekeye EO. Recurrent Ameloblastoma of the jaws: A follow-up Study. Int JOral Maxilofac Surg 1998; 6:456-60.

Nastri AL, Wiesenfeld D, Radden BG, Eveson J, Scully C. Maxilary ameloblastoma: retrospective study of 13 Cases. Br J Oral Maxillofac Surg 1995; 33:28-32.

Neville BW, Damm DD, Allen CM, Bouquot JE. Patologia oral e maxillofacial. 2 ed. Rio de Janeiro: Guanabara Koogan. 2004:798.

Regezzi JA, Sciubba JJ. Patologia bucal: Correlações clinicopatológicas. Rio de Janeiro: Guanabara-Koogan. 1991; 390.

Henderson JM, Sonnet JR, Schlesinger C, Robert A. Pulmonary metastsis of ameloblastoma. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 1999; 88:170-6.

Isberner RK, Nagazava MM, Chiang JT, Gonçalves M, Dib LL. Diagnostico diferencial dos tumores da mandíbula e maxila. Rev Imag 1999; 21:65-71.

Cunha EM, Fernandes AV, Veriani MA, Loyola AM.Unicystic Ameloblastoma: A possible pitfall in periapical diagnosis. Inter End J 2005; 38:334- 40.

Batista AC, Filho HN, Rippert Et. Periapical Raiolucency in the Mandibular Molar Region. J Oral Maxillofac Surg 2002; 60:186-9.

Amorim RFB, Freitas RA. Ameloblastoma periapical mimetizando lesão de natureza endodontica. Rev Bras Patol Oral 2003; 2:36-9.

Walton RE, Torabinejad M. Lesões pulpares e perirradiculares. In: Principios e prática em endodontia. São Paulo: Santos, 1997; 29-51.

Genco RJ, Cohen W, Goldoman HM. Classificação e características clínicas da doença periodontal. In: Periodontia contemporânea. 2 ed.Rio de Janeiro: Guanabara-Koogan, 1997; 63-81.

Carranza FA. A bolsa periondontal. in Periodontia clínica. Rio de Janeiro: Guanabara Koogan 1997; 296-312.

Queiroz SBF, Amorim RFB, Godoy EP, Freitas RA. Tratamento conservador de ameloblastoma sólido: novos conceitos e abordagens terapêuticas. Rev Bras Patol Oral 2002; 1:39-46.

Ueno S, Mushimoto K, Shirasu R. Prognostic evaluation of ameloblastoma based on histologic and radiografic typing. J Oral Maxillofac Surg 1989; 47: 11-5.

Bataineh AB. Effect of Preservation of the inferior and posterior borders on recurrence of ameloblastoma of the mandibule. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2000; 90:155-63.

Silveira HED, Barbachan JJD. Estudo comparativo entre os limites radiográfico e histológico em ameloblastomas. Rev Fac Odontol Porto Alegre 2000; 41:49-54



How to Cite

Dias, A. C. S., Abdo, E. N., Souza, L. N. de, Gomez, R. S., & Naves, M. D. (2016). Ameloblastoma: consequences of a misdiagnosed case. Arquivos Em Odontologia, 43(3). Retrieved from




Most read articles by the same author(s)