PMC4836096_01
Extra-oral swelling present on the left side of the face. Overlying skin is normal
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F1
A 25-year-old male patient reported to our institution with a swelling in the lower left posterior region of lower jaw for 2 months that followed the extraction of 36 [Figure 1].
Intra-oral swelling in relation to 35-37. Overlying mucosa appears to be normal, and the expansion of buccal cortical plate can be noted
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F2
Intraoral examination revealed swelling extending from the left second premolar to the second molar region, causing the expansion of both buccal and lingual aspect of alveolar ridge [Figures 2-4].
Raised mucosal flap with a defect in the bone
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F3
Intraoral examination revealed swelling extending from the left second premolar to the second molar region, causing the expansion of both buccal and lingual aspect of alveolar ridge [Figures 2-4].
Gross surgical specimen with cystic lumen and well-defined borders
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F4
Intraoral examination revealed swelling extending from the left second premolar to the second molar region, causing the expansion of both buccal and lingual aspect of alveolar ridge [Figures 2-4].
Intraoral periapical radiograph showing unilocular radiolucency with well-defined borders involving 35 and 37. Sclerotic border can be noted, and there is no root resorption. Missing 36 can be noted
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F5
Radiographic examination (intraoral periapical radiograph [IOPA and OPG]) revealed well-defined, unilocular radiolucency with sclerotic borders in relation to 35-37 and 36 were missing [Figures 5 and 6].
Orthopantomograph showing unilocular radiolucency with well-defined borders involving 35 and 37. Sclerotic border can be noted, and there is no root resorption. Missing 36 can be noted
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F6
Radiographic examination (intraoral periapical radiograph [IOPA and OPG]) revealed well-defined, unilocular radiolucency with sclerotic borders in relation to 35-37 and 36 were missing [Figures 5 and 6].
PMC4836096_02
Photomicrograph demonstrating nonkeratinising cystic epithelial lining and supporting connective tissue capsule with flat interphase (H and E, x4)
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F7
Based on these findings, histopathologically it was diagnosed as GOC [Figures 7-10].
Cystic epithelial lining showing epithelial "plaques" with luminal proliferation and the presence of microcystic spaces (H and E, x10)
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F8
Based on these findings, histopathologically it was diagnosed as GOC [Figures 7-10].
Photomicrograph showing numerous mucous cells and cubaoidal cells (arrow) at the surface microcystic spaces in the eptithelial lining (H and E, x40)
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F9
Based on these findings, histopathologically it was diagnosed as GOC [Figures 7-10].
Photomicrograph showing the presence of "hobnail" cells (red arrows) in the epithelial lining and "dentinoid" (black arrow) (H and E, x40)
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F10
Based on these findings, histopathologically it was diagnosed as GOC [Figures 7-10].