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Unicystic ameloblastoma of the mandible--an unusual case report and review of literature.

Ramesh RS, Manjunath S, Ustad TH, Pais S, Shivakumar K - Head Neck Oncol (2010)

Bottom Line: It is the second most common odontogenic neoplasm, and only odontoma outnumbers it in reported frequency of occurrence.It accounts for 5-15% of all intraosseous ameloblastomas.We report a case of unicystic ameloblastoma in a 30-year-old female, and review the literature.

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Affiliation: Department of Surgical Oncology, St Johns Medical College Hospital, Sarjapur Road, Bangalore 560034, India. srakesh99@yahoo.co.in

ABSTRACT
Ameloblastoma is a true neoplasm of odontogenic epithelial origin. It is the second most common odontogenic neoplasm, and only odontoma outnumbers it in reported frequency of occurrence. Its incidence, combined with its clinical behavior, makes ameloblastoma the most significant odontogenic neoplasm. Unicystic ameloblastoma (UA) refers to those cystic lesions that show clinical, radiographic, or gross features of a mandibular cyst, but on histologic examination show a typical ameloblastomatous epithelium lining part of the cyst cavity, with or without luminal and/or mural tumor growth. It accounts for 5-15% of all intraosseous ameloblastomas. We report a case of unicystic ameloblastoma in a 30-year-old female, and review the literature.

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Figure 6: Resected specimen.

Mentions: A 30 year old lady presented with a slowly growing swelling on the right side of the face since one year (Figure 1). There was no associated pain, difficulty in opening the mouth, chewing or articulating. On physical examination, there was a hard non-tender mass, measuring 8 cm by 5 cm arising from the right side of the mandible, involving the ramus, angle and body upto the right lower 1st premolar tooth. The oral mucosa was normal. No neck nodes were palpable. Systemic examination was normal. An orthopantomogram (OPG) was done, which showed large cystic lesion in the right side of mandible (Figure 2). CT scan showed that the cystic lesion was confined to the mandible, with a thinned out cortex (Figure 3). The patient was taken up for surgery under general anaesthesia. A segmental mandibulectomy was done via a lip split incision (Figures 4, 5), and primary closure achieved. The resected specimen had histopathologic features consistent with unilocular ameloblastoma (Figure 6).


Unicystic ameloblastoma of the mandible--an unusual case report and review of literature.

Ramesh RS, Manjunath S, Ustad TH, Pais S, Shivakumar K - Head Neck Oncol (2010)

Resected specimen.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2821325&req=5

Figure 6: Resected specimen.
Mentions: A 30 year old lady presented with a slowly growing swelling on the right side of the face since one year (Figure 1). There was no associated pain, difficulty in opening the mouth, chewing or articulating. On physical examination, there was a hard non-tender mass, measuring 8 cm by 5 cm arising from the right side of the mandible, involving the ramus, angle and body upto the right lower 1st premolar tooth. The oral mucosa was normal. No neck nodes were palpable. Systemic examination was normal. An orthopantomogram (OPG) was done, which showed large cystic lesion in the right side of mandible (Figure 2). CT scan showed that the cystic lesion was confined to the mandible, with a thinned out cortex (Figure 3). The patient was taken up for surgery under general anaesthesia. A segmental mandibulectomy was done via a lip split incision (Figures 4, 5), and primary closure achieved. The resected specimen had histopathologic features consistent with unilocular ameloblastoma (Figure 6).

Bottom Line: It is the second most common odontogenic neoplasm, and only odontoma outnumbers it in reported frequency of occurrence.It accounts for 5-15% of all intraosseous ameloblastomas.We report a case of unicystic ameloblastoma in a 30-year-old female, and review the literature.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Surgical Oncology, St Johns Medical College Hospital, Sarjapur Road, Bangalore 560034, India. srakesh99@yahoo.co.in

ABSTRACT
Ameloblastoma is a true neoplasm of odontogenic epithelial origin. It is the second most common odontogenic neoplasm, and only odontoma outnumbers it in reported frequency of occurrence. Its incidence, combined with its clinical behavior, makes ameloblastoma the most significant odontogenic neoplasm. Unicystic ameloblastoma (UA) refers to those cystic lesions that show clinical, radiographic, or gross features of a mandibular cyst, but on histologic examination show a typical ameloblastomatous epithelium lining part of the cyst cavity, with or without luminal and/or mural tumor growth. It accounts for 5-15% of all intraosseous ameloblastomas. We report a case of unicystic ameloblastoma in a 30-year-old female, and review the literature.

Show MeSH
Related in: MedlinePlus