PMC3804142_01
(a) Clinical image. (b) Multilocular radiolucent lesion.
CRIM.DENTISTRY2013-672383.001.jpg
PMC3804142_01_CRIM.DENTISTRY2013-672383.001.jpg
fig1
A 73-year-old female was referred presenting a slight asymptomatic swelling on the right mandibular angle and ascending ramus of years of evolution (Figure 1(a)). Radiographically, the lesion appeared as a well-defined multilocular radiolucency on the right posterior mandible and ascending ramus (Figure 1(b)).
PMC3804142_02
(a) Unilocular radiolucent lesion distal to 4.8. (b) Fibrous connective tissue with a stratified epithelium with orthokeratosis lining.
CRIM.DENTISTRY2013-672383.002.jpg
PMC3804142_02_CRIM.DENTISTRY2013-672383.002.jpg
fig2
The orthopantomography shows an unilocular radiolucent lesion, posterior to the 4.8, extending to the ascending ramus (Figure 2(a)). In the histopathological analysis, a cystic lesion was recognized with a fibrous connective tissue capsule without inflammation, covered by a stratified epithelium with orthokeratosis and marked granular layer (Figure 2(b)).
PMC3804142_03
(a) Initial orthopantomography. (b) Fibrous connective tissue with a stratified epithelium with hyperorthokeratosis lining.
CRIM.DENTISTRY2013-672383.003.jpg
PMC3804142_03_CRIM.DENTISTRY2013-672383.003.jpg
fig3
A 61-year-old male who was on a routine dental follow-up presents with a well-defined radiolucent lesion, posterior to the right inferior third molar and extended to the ramus (4.8) on the radiographic exploration (Figure 3(a)).  The cavity was filled with keratin flakes (Figure 3(b)).