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A palatal dentigerous cyst arising from a mesiodente
P M Som1, L M Shangold, H F Biller
1Department of Radiology, Mount Sinai Medical Center, City University of New York, NY 10029-6574.
AJNR. American Journal of Neuroradiology
|January 1, 1992
Summary
Dentigerous cysts, often linked to unerupted teeth, can rarely arise from a mesiodente (a supernumerary tooth in the maxilla). This case highlights CT and MR imaging findings of such a rare cyst extending into nasal fossae.
Area of Science:
- Dentistry
- Oral and Maxillofacial Surgery
- Radiology
Background:
- Dentigerous cysts are developmental odontogenic cysts.
- They arise from unerupted teeth, most commonly permanent incisors, canines, premolars, and molars.
- Supernumerary teeth, particularly mesiodentes in the maxilla, can also be associated with dentigerous cyst formation.
Observation:
- A rare case of a dentigerous cyst originating from a mesiodente is presented.
- The mesiodente was located in the anterior maxilla, near the midline.
- The associated cyst extended superiorly into the nasal fossae.
Findings:
- Computed Tomography (CT) and Magnetic Resonance (MR) imaging were utilized to evaluate the cyst.
- Imaging findings demonstrated the cyst's relationship with the mesiodente and its extension into adjacent anatomical structures.
- The characteristic features of a dentigerous cyst associated with a supernumerary tooth were identified.
Implications:
- This case underscores the importance of considering dentigerous cysts in the differential diagnosis of cystic lesions in the maxilla, especially when associated with unerupted or supernumerary teeth.
- Accurate radiological assessment using CT and MR is crucial for diagnosis and surgical planning.
- Understanding the potential extension of these cysts into the nasal fossae is vital for comprehensive patient management.