Unicystic ameloblastoma: a possible pitfall in periapical diagnosis

Cunha EM, Fernandes AV, Versiani MA, Loyola AM. Unicystic ameloblastoma: a possible pitfall in periapical diagnosis. International Endodontic Journal, 38, 334–340, 2005. Aim  To report a clinical case of unicystic ameloblastoma previously misdiagnosed as radicular cyst. Summary  A 49‐year‐old white...

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Bibliographic Details
Published in:International endodontic journal 2005-05, Vol.38 (5), p.334-340
Main Authors: Cunha, E. M., Fernandes, A. V., Versiani, M. A., Loyola, A. M.
Format: Article
Language:English
Subjects:
ameloblastoma
Ameloblastoma - diagnosis
Dentistry
diagnosis
Diagnosis, Differential
Follow-Up Studies
Humans
Male
Mandibular Diseases - diagnosis
Mandibular Neoplasms - diagnosis
Middle Aged
odontogenic tumours
periapical diseases
Radicular Cyst - diagnosis
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Summary:Cunha EM, Fernandes AV, Versiani MA, Loyola AM. Unicystic ameloblastoma: a possible pitfall in periapical diagnosis. International Endodontic Journal, 38, 334–340, 2005. Aim  To report a clinical case of unicystic ameloblastoma previously misdiagnosed as radicular cyst. Summary  A 49‐year‐old white male was referred to a private practitioner complaining of an asymptomatic bony hard swelling of the left posterior mandible. The patient's dental history indicated that his left mandibular first molar had been extracted approximately 10 years previously. At that time, preoperative radiographic examination demonstrated a radiolucent area of 1.5 cm diameter with well‐defined margins involving the distal root of tooth 36. The lesion was diagnosed as cystic and surgery for its removal was advised, but not performed. At presentation, radiography demonstrated a well‐defined 3 cm diameter radiolucency extending from the second premolar to the second molar. The lesion was enucleated and histopathological examination confirmed a diagnosis of unicystic ameloblastoma. Key learning points •Despite a clinical diagnosis of periapical disease of endodontic origin, a nonendodontic lesion may be present. •Unicystic ameloblastoma located on the periapical area of a tooth can lead to a pulp‐periapical misdiagnosis, and should be considered in differential diagnosis. •All tissue specimens recovered in apical surgery should be submitted to histopathological analysis.
ISSN:0143-2885
1365-2591
DOI:10.1111/j.1365-2591.2005.00956.x