The Journal
The cells had abundant eosinophilic cytoplasm with a tendency to calcify . Upon special staining , the eosinophilic material was confirmed as amyloid , diagnosing the tumour as CEOT ( Fig . 7 ).
The patient is planned for free fibula bone flap and subsequent occlusal rehabitilation after completion of the follow up period .
Discussion
Incidence Calcifying epithelial odontogenic tumour is a rare odontogenic neoplasm with around 200 cases reported in the literature . Its
1 , 4 frequency rates have been reported as < 1 % .
Fig 7
Segmental resection of the tumour was carried out from canine to the ramus , while preserving the posterior one third ( Fig . 8 ).
Fig 8
Mandibular continuity was restored by means of a reconstruction plate ( Fig . 9 ).
Fig 9
Age and gender predilection The age of this patient is 51 years , in accordance with a peak incidence of this tumour between 40-60 yrs . It is
5 , 6
usually not found in children and adolescents . It has no gender predilection . However , the rd
peak incidence for males ( 3 decade ) is reached a decade earlier than females ( 4
7 decade ) .
Clinical presentation Typically this is a benign , slow growing but invasive neoplasm . CEOT occurs either intraosseously or extraosseously . The intraosseous variant is more common ,
7
comprising about 94 % of such tumours . The intraosseous CEOT commonly manifests as a slow growing swelling with expansion of the surrounding bone . It is painless and is often detected as an incidental radiographic finding . Our research of the literature for CEOT did not reveal any other case of associated sensory dysfunction along the inferior alveolar nerve or mental nerve . As was true for this patient , nearly half of these tumours are associated with
7 unerupted mandibular molars .
Site predilection Intraosseous CEOT involves the mandible more frequently than the maxilla
8 9
( 2:1 ) ( 3:1 ) and is more common in the premolar molar region . It has a greater recurrence rate when involving the molar area
8
as against the premolar area ( 3:1 ) . The peripheral variant is more common in the anterior region of the maxilla and presents as a painless , firm gingival mass . th
10 39 Vol . 12 No . 23 May-August Sept-Dec 2016