PMC4860926_01
Photograph showing extraoral swelling on left cheek region of the face
JOMFP-20-164a-g001.jpg
PMC4860926_01_JOMFP-20-164a-g001.jpg
F1
On extraoral examination, a swelling was seen in the left maxillary region measuring approximately 3 cm x 3 cm and was roughly spherical in shape [Figure 1].
Orthopantomogram shows a well-defined unilocular radiolucent lesion extending from the mesial surface of 63 to the unerupted 26, absence of developing tooth bud of 24 and 25, oval radio-opacity (arrow). Intraoral periapical in the inset shows grossly carious 64 and 65
JOMFP-20-164a-g002.jpg
PMC4860926_01_JOMFP-20-164a-g002.jpg
F2
On radiological examination, a well-defined unilocular radiolucency extended anteroposteriorly from the mesial surface of 63 to the unerupted 26 and superio-inferiorly, from developing 23 to the carious 64 and 65 [Figure 2].
Photograph showing gross specimen consisting of (a) inset showing cystic lining, (b) crypt-like malformed tooth structure, (c) malformed tooth covered by portion of cystic lining
JOMFP-20-164a-g003.jpg
PMC4860926_01_JOMFP-20-164a-g003.jpg
F3
The gross specimen consisted of multiple bits of soft tissue and a hard tissue [Figure 3].
Photomicrograph showing cystic cavity lined by nonkeratinized stratified squamous epithelium showing arcading pattern (H&E stain, x40)
JOMFP-20-164a-g004.jpg
PMC4860926_01_JOMFP-20-164a-g004.jpg
F4
Soft tissue surrounding the crypt - consisted of the cystic lumen, cystic lining and connective tissue capsule [Figure 4].
Photomicrograph showing longitudinally arranged dentinal tubules in the ground section (Ground section, x40) and inset showing dentinal tubules in decalcified section (H&E stain, x200)
JOMFP-20-164a-g005.jpg
PMC4860926_01_JOMFP-20-164a-g005.jpg
F5
Hard tissue (crypt/dome like structure) (decalcified section and ground section): The inner thickness of the crypt showed predominant presence of longitudinal and cross cut dentinal tubules like structure [Figure 5].
Photomicrograph showing an arrangement resembling dentinal tubules merging with haversian canal (H&E stain, x100)
JOMFP-20-164a-g006.jpg
PMC4860926_01_JOMFP-20-164a-g006.jpg
F6
Moving to the outer thickness of the crypt, areas of transversely cut dentinal tubules were seen merging with haversian canal [Figure 6].
Photomicrograph showing lamellar bone pattern (ground section, x200)
JOMFP-20-164a-g007.jpg
PMC4860926_01_JOMFP-20-164a-g007.jpg
F7
The outermost thickness of the crypt showed predominantly lamellated bone like arrangement with the presence of concentric lamellaes and haversian canals [Figure 7], thus speculating attempted tooth formation.
Photomicrograph showing odontogenic epithelium with presence of columnar ciliated cells (H&E stain, x100)
JOMFP-20-164a-g008.jpg
PMC4860926_01_JOMFP-20-164a-g008.jpg
F8
The presence of hemorrhagic areas was suggestive of localized degeneration [Figure 8].