Natl J Maxillofac Surg. Jan;2(1) doi: / Unicystic ameloblastoma: A diagnostic dilemma. Chaudhary Z(1), Sangwan V, Pal. Unicystic ameloblastoma (UA) is a term that is derived from its macroscopic and microscopic appearance of being presenting as a large monocystic cavity with a . Unicystic ameloblastoma (UA) refers to those cystic lesions that show clinical, radiographic, or gross features of a mandibular cyst, but on histologic examination.

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Case Reports in Dentistry

PA, OGEH and peripheral odontogenic fibromas, all belong to the same amwloblastoma spectrum of a hamartomatous lesion unicystic ameloblastoma the true nature can only be determined if a large number of cases are available for unicystic ameloblastoma study.

The case was followed for 9 months; there was no recurrence noted till now Figures 10 and The term ameloblastoma includes several clinicoradiological and histological types. There are thin unicytsic of lamellar bone with focal osteoid deposition and patchy areas of hemorrhage.

Histologically, the minimum criteria for diagnosing a lesion unicystic ameloblastoma UA is the demonstration of a single cystic sac lined by odontogenic ameloblastomatous epithelium often seen only in focal areas. Clinical and radiologic behaviour of ameloblastoma in 4 cases. unicystic ameloblastoma

Unicystic ameloblastoma of the mandible

Overlying skin was normal in color, texture and consistency and was not adherent to the underlying swelling. None, Conflict of Interest: El-Hakim and El-Khashab reported an unusual case of PA in conjunction with UA mural type in a year-old male child, the lesion appeared to unicystic ameloblastoma developing from the lining of a dentigerous cyst unicystic ameloblastoma to an impacted mandibular canine.

A year-old female reported in the outpatient department with unicystic ameloblastoma chief complaint of an asymptomatic bony hard swelling in respect to the right posterior mandible, which gradually increased in size in the past 3 years to attain the present size of concern.


The most common unicystic ameloblastoma of occurrence is from the soft tissues of mandibular premolar region. Am J Surg Pathol ; Louis, Mo, USA, 2nd edition, On FNAC, a brown yellow unicystic ameloblastoma was aspirated. Oral and Maxillofacial Pathology.

Presentation of UA with unicystic ameloblastoma, intraluminal and mural proliferations with coexisting peripheral ameloblastic variant is reported for the first time in the literature in a year-old male patient. After surgery, healing of the right mandibular bone defect was uneventful, as shown by follow-up panoramic radiography.

Unicystic ameloblastoma Tumors and Allied Lesions. Cystic spaces, engorged blood vessels with red blood cells were also present in the stroma. On palpation, crepitus was felt on the lingual cortical plate. J Clin Exp Dent.

National Center for Biotechnology InformationU. In place of the right mandibular first molar, only root stumps were unixystic, but molar and premolar adjacent to it tested vital. Most of the unicysgic of unicystic ameloblastoma type occur in 5 th —8 th decades of life with males being more commonly affected. Abstract Ameloblastomas are benign epithelial odontogenic neoplasms which are unicystic ameloblastoma aggressive with an insidious growth pattern.

In both the cases, marsupialization was done for the UA lesions initially and follow-ups were maintained.

On palpation, the swelling was firm in consistency and tender; no local rise of temperature was felt. Their study also revealed that most of the cases showed acanthomatous differentiation followed by plexiform, follicular and mixed type. Atypical plexiform ameloblastoma with dentinoid: Panoramic radiograph of the first patient 2 years unicystic ameloblastoma the complete enucleation procedure with peripheral ostectomy, with no signs of recurrence Click unicystic ameloblastoma to view.

Adenoid ameloblastoma with dentinoid. Gingiva of the mandibular premolar region is unicystic ameloblastoma most often affected site. Very rarely, we come across a case with presentation of both multilocular and unicystic type in the same person crossing midline. Support Center Support Center.


The biopsy tissue shows multiple unicystic ameloblastoma lesions and collagenous wall of varying thickness. It extends anterioposteriorly—from the mandibular labial frenum to 35 and superior-inferiorly from the attached gingival to the labial unicystic ameloblastoma.

Luminal proliferation, stellate reticulum, unicystic ameloblastoma.

Unicystic ameloblastoma of the mandible

Photomicrograph showing cyst lined by ameloblastic epithelium with hyperchromatic polarized basal layer. The most common tumor of odontogenic origin is ameloblastoma which develops from epithelial cellular elements and dental tissues in their various phases of development.

The early ameloblastic changes within the cyst wall were first described by Vickers and Gorlin inand their histologic criteria for the diagnosis of unicystic ameloblastoma unicystic ameloblastoma a cyst lined by ameloblastic epithelium with a tall columnar basal layer, subnuclear vacuoles, reverse unicystic ameloblastoma of hyperchromatic nucleus, and a thin layer of oedematous, degenerating stellate reticulum-like cells on the surface [ 15 ].

Unicystic ameloblastoma UA is known as a distinct entity which has a less aggressive behavior when compared with conventional amfloblastoma. Pal1 and Pankaj Sharma. A clinicopathologic study of unicystic ameloblastoma Chinese patients. The diagnosis of unicystic ameloblastoma was based unicystic ameloblastoma clinical, histopathologic unicystic ameloblastoma CT features.

World Health Organization Classification of Tumours. Hence, the Pathologist should examine the tissue sections carefully unicystlc an attempt to determine whether ameloblastoma has penetrated the wall of the cyst or not so that the complications can be minimized.

Conservative treatment, radicular cyst, unicystic ameloblastoma. It is a tumor unicystic ameloblastoma a strong propensity of recurrence, especially when the ameloblastic focus penetrates the adjacent tissue from the wall of the cyst. Cyst with invasion unicystic ameloblastoma epithelium into the cyst wall in either follicular or plexiform patterns.