Large erupted complex odontoma with dentigerous cyst
. J Oral Maxillofac Surg Med Pathol 2018;30:330-5.
Infected dentigerous cyst
of maxillary sinus arising from an ectopic third molar.
Impacted teeth may lead to common complications like carious lesions of the impacted or adjacent tooth, periapical infection, periodontal disease and pathology like cyst and tumor.9 Common odontogenic cysts and tumors include dentigerous cyst
, calcifying odontogenic cyst, ameloblastoma, adenomatoid odontogenic tumor, odontogenic keratocyst, calcifying epithelial odontogenic tumor, and odontoma.10 Review of literature states that cystic or neoplastic lesions are seen in 16% of impacted teeth and is most common finding during the second and third decades of life.11 The most frequent lesion associated with impacted teeth is the dentigerous cyst
It is sometimes indistinguishable from a dentigerous cyst
. (6) Often, avid contrast enhancement is seen in the solid portions of the tumor with marked hyperintensity on T2-weighted sequences related to the cystic nature of the lesions.
occurs radiographicallyas a well-defined unilocular radiolucency, often with a sclerotic border.
A clinicopathological study of 338 dentigerous cysts
. J Oral Pathol Med 2013;42(6):462-7.
Rajendran, "Syndecan-1 (CD 138) surface expression marks cell type and differentiation in ameloblastoma, keratocystic odontogenic tumor, and dentigerous cyst
," Journal of Oral Pathology & Medicine, vol.
77% of follicular type AOT's are initially diagnosed as dentigerous cysts
. Dentigerous cyst
encloses only the coronal portion of the impacted tooth with the radiolucency attached at the cementoenamel junction (CEJ), whereas in AOT the radiolucency usually surrounds both the coronal and radicular aspects of the involved tooth.
In a case report by Seema et al (2013),11 OKC was misdiagnosed as dentigerous cyst
which had its subsequent effects on the management of the cyst.
Out of 10 benign lesions, four each were anthrochoanal polyp, two each were fibrous dysplasia, one each was inverted papilloma, dermoid cyst, and dentigerous cyst
The lesion was presumed to be a unicystic ameloblastoma and differential diagnoses of dentigerous cyst
and KCOT were given.
Studies from different parts of the world like Mexico18, Japan19, Nigeria20, and Jordan21 shows radicular cysts, dentigerous cysts
and OKC as the most common odontogenic jaw cysts, we also report simillar results as in our study radicular cyst was the most common 58% followed by dentigerous cyst
25% and OKC 15% respectively.
Based on the age and the clinical findings, a provisional diagnosis of infected dentigerous cyst
This article aims to show a case about 11 year old boy having a dentigerous cyst
associated with the mandibular canine and a premolar.
True cysts of the orofacial region are those lined with epithelium (e.g., dentigerous cyst
) while those not lined by epithelium are referred to as pseudocysts.