Dentigerous cyst versus unicystic ameloblastoma - differential diagnosis in routine histology

2003 ◽  
Vol 32 (8) ◽  
pp. 486-491 ◽  
Author(s):  
Anton Dunsche ◽  
Ortwin Babendererde ◽  
Jutta Lüttges ◽  
Ingo N. G. Springer
Keyword(s):  
Differential Diagnosis ◽  
Dentigerous Cyst ◽  
Unicystic Ameloblastoma

scholarly journals Unicystic Ameloblastoma in 6-Year-Old Child and Its Significance

2011 ◽  
Vol 2 (4) ◽  
pp. 363-366 ◽  
Author(s):  
Girish S Rao ◽  
Sudhakara K Reddy
Keyword(s):  
Differential Diagnosis ◽  
Tumor Growth ◽  
Anterior Part ◽  
Dentigerous Cyst ◽  
Histologic Examination ◽  
Anterior Region ◽  
Cystic Lesions ◽  
Unicystic Ameloblastoma ◽  
Epithelial Origin ◽  
Cyst Cavity

ABSTRACT Ameloblastoma is a true neoplasm of odontogenic epithelial origin. Unicystic ameloblastoma 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 to 15% of all intraosseous ameloblastomas. They believed to be less aggressive and respond more favorably to conservative excision than the solid or multicystic ameloblastomas. We report a case of unicystic ameloblastoma of the anterior part of the mandible that was treated by enucleation and use of Cornoy's solution under suspicion of an odontogenic cyst. The nature of the lesion became evident only when the enucleated material was available for histologic examination. With this report, we illustrate the importance and complexity of a differential diagnosis of lesions with a cystic aspect in the anterior region of the mandible, among them are dentigerous cyst, odontogenic keratocysts, adenomatoid odontogenic and unicystic ameloblastoma.

Endodontic management of an impacted premolar

2005 ◽  
Vol 29 (4) ◽  
pp. 293-298 ◽  
Author(s):  
Virginia Karapanou
Keyword(s):  
Differential Diagnosis ◽  
Case Report ◽  
High Risk ◽  
Treatment Option ◽  
Dentigerous Cyst ◽  
Adolescent Patient ◽  
Multiple Gene ◽  
Impacted Teeth

This report demonstrates a simple endodontic solution to an interdisciplinary case of a patient with multiple gene deficiencies. An adolescent patient presented with an impacted premolar that could not be extracted due to high-risk conditions. A suspicious degree of radiolucency around the crown was clinically diagnosed as dentigerous cyst. The treatment dilemma and implementation are discussed. This case report offers a different treatment option for impacted teeth when significant differential diagnosis of a pericoronal lesion dictates treatment.

Calretinin Expression in Unicystic Ameloblastoma: An Aid in Differential Diagnosis

2010 ◽  
Vol 52 (2) ◽  
pp. 164-169 ◽  
Author(s):  
Sireesha Krishna Sundaragiri ◽  
Jyoti Chawda ◽  
Sharanjeet Gill ◽  
Seema Odedra ◽  
Girish Parmar
Keyword(s):  
Differential Diagnosis ◽  
Unicystic Ameloblastoma

scholarly journals AMELOBLASTOMA ASSOCIATED WITH DENTIGEROUS CYST

2021 ◽  
Vol 2 (2(83)) ◽  
pp. 17-19
Author(s):  
A. Ivanov ◽  
G. Ivanov ◽  
I. Bivolarski
Keyword(s):  
Surgical Treatment ◽  
Dentigerous Cyst ◽  
Maxillofacial Surgery ◽  
University Hospital ◽  
Odontogenic Cysts ◽  
Biopsy Result ◽  
X Ray ◽  
Cystic Formation ◽  
Unicystic Ameloblastoma ◽  
Morphological Diagnosis

Ameloblastoma is a benign, locally aggressive tumour, with an unicystic variant that is very difficult to be differentiated from odontogenic cysts, because of their similarity in the clinical manifestation and X-ray examination. The morphological similarities between these processes make for a more difficult histological diagnosis. We present a case of a 32-year old male, admitted in the Maxillofacial surgery clinic in a University hospital for surgical treatment, because of a swelling in the left mandibular vestibule. A cystic formation, histologically diagnosed as an epithelial one, is removed. Eight months later, the patient is admitted once again, with the same symptoms. The biopsy result from the second operation is a plexiform unicystic ameloblastoma. What is being discussed is the connection between the two pathological processes and the difficulties with giving the correct morphological diagnosis.  

scholarly journals Calretinin as a Diagnostic Adjunct for Ameloblastoma

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Chitra Anandani ◽  
Rashmi Metgud ◽  
Karanprakash Singh
Keyword(s):  
Differential Diagnosis ◽  
Calcium Binding ◽  
Keratocystic Odontogenic Tumor ◽  
Diagnostic Challenge ◽  
Chi Square ◽  
Unicystic Ameloblastoma ◽  
Odontogenic Epithelium ◽  
Significant Difference ◽  
Ef Hand ◽  
Chi Square Test

Background. Calretinin is a 29 kDa calcium-binding protein of the EF-hand family which is expressed in a variety of normal and tumorigenic tissues. Its expression in odontogenic epithelium during odontogenesis and in neoplastic odontogenic tissues has been demonstrated. Unicystic ameloblastoma poses a diagnostic challenge, as its histologic presentation can be sometimes mistaken for keratocystic odontogenic tumor (KCOT). This study was performed to assess the usefulness of calretinin as a confirmatory marker for ameloblastic tissue. Methodology. Total of 40 cases: 16 unicystic ameloblastoma, 4 multicystic ameloblastoma, and 20 KCOT, were evaluated immunohistochemically for the presence, localization, distribution, and intensity of calretinin expression. Statistical analysis was done using Chi-square test to intercompare the expression between ameloblastoma and KCOT. Results. Sixteen cases of ameloblastoma (12 unicystic, 4 multicystic) showed positive calretinin staining of ameloblastic epithelium and only one case of KCOT was positive for calretinin, with the positivity restricted to the stellate reticulum like epithelium. Intercomparison between two groups revealed statistically significant difference (P=0.000). Conclusion. Calretinin appears to be a specific immunohistochemical marker for neoplastic ameloblastic epithelium and may be an important diagnostic adjunct in the differential diagnosis of ameloblastoma and KCOT.

scholarly journals Differential diagnosis between cyst and tumor. Dentigerous cyst and ameloblastoma containing teeth.

1990 ◽  
Vol 32 (1) ◽  
pp. 19-26 ◽  
Author(s):  
Atsushi IKESHIMA ◽  
Mitsuhisa OZAWA ◽  
Hirotsugu YAMAMOTO ◽  
Masao ARAKI ◽  
Eiko SAIRENJI
Keyword(s):  
Differential Diagnosis ◽  
Dentigerous Cyst

scholarly journals Imaging aspects of the dentigerous cyst magnetic in resonance imaging and ultrasound

2014 ◽  
Vol 17 (3) ◽  
pp. 105
Author(s):  
Antonione Santos Bezerra Pinto ◽  
Thyago Leite Campos de Araújo ◽  
Sávia Francisca Lopes Dias ◽  
Maria Adelaide Guimarães ◽  
Moara E Silva Conceição Pinto ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Gold Standard ◽  
Dentigerous Cyst ◽  
Imaging Study ◽  
Imaging Modalities ◽  
Resonance Imaging ◽  
Anatomical Structures ◽  
Invasive Method ◽  
Magnetic Resonance Imaging Mri ◽  
Living Organisms

<p>Magnetic resonance imaging (MRI) is a type of imaging study considered the gold standard in the analysis of the internal structure and content of intraosseous lesions, allowing for their inherent characteristics of acquisition, determine the nature and differential diagnosis between changes that have aspects Similar to other imaging modalities, such as on radiographs and computed tomography (CT) and also has the great advantage of not being an invasive method, since it does not use ionizing radiation.The ultrasound (U.S.) and MRI provides images without showing deleterious effects to living organisms, enabling the differentiation between solid and cystic lesions, however, lacks the ability of MRI to provide an anatomical detailing determined, nor information about the chemical composition of the lesions, which would be crucial in determining the diagnosis of the same. The dentigerous cyst is among the most frequent odontogenic lesions that affect the maxillomandibular complex, requiring a thorough assessment of its extent and proximity to anatomical structures as well as the differential diagnosis with other lesions. This study aimed to emphasize the use of MRI and U.S. in the diagnosis of lesions dentomaxilofaciais, describing a clinical case of dentigerous cyst in these imaging modalities were used as complementary tests.<strong></strong></p>

scholarly journals Unicystic ameloblastoma mimicking a dentigerous cyst: short case report

2018 ◽  
Vol 24 (4) ◽  
pp. 163-166
Author(s):  
Martin Gaudinat ◽  
Mickael Samama ◽  
Alice Guyon ◽  
Omar Razouk ◽  
Patrick Goudot
Keyword(s):  
Case Report ◽  
Case Reports ◽  
Dentigerous Cyst ◽  
Benign Tumour ◽  
Unicystic Ameloblastoma ◽  
Mandibular Canine

Observation: This case reports an unusual morphology and localisation of ameloblastoma that imitates a dentigerous cyst on an inclused mandibular canine. Comments: Ameloblastoma is a local odontogenic benign tumour which often relapse. It is usually described in its polycystic form in the posterior mandibular part.

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