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Case Reports
. 2023 Jul-Aug;27(4):434-436.
doi: 10.4103/jisp.jisp_292_22. Epub 2023 Jul 1.

Paradental cyst with hyaline ring granuloma masquerading as pericoronitis

V Vasanthi  1 , Tamizh Paavai Tha  1 , A Ramesh Kumar  1 , Sasikala Balasubramanian  2
Affiliations
Case Reports

Paradental cyst with hyaline ring granuloma masquerading as pericoronitis

V Vasanthi et al. J Indian Soc Periodontol. 2023 Jul-Aug.

Abstract

Paradental cyst is an odontogenic cyst associated with pericoronitis in partly erupted mandibular third molars. It is an inflammatory cyst common among the mandibular molars. The cyst is most commonly seen on the distal or distobuccal aspect of the third molars. The angle of tooth and food impaction has been postulated to be responsible for the development of the cyst in third molars. The source of the epithelium has been reported as reduced enamel epithelium. The paradental cyst is frequently misdiagnosed as a radicular cyst or dentigerous cyst. We report a case of paradental cyst in a patient with partially erupted mandibular third molar with food impaction and resulting hyaline ring granuloma.

Keywords: Food impaction; hyaline ring granuloma; mandibular molar; paradental cyst; pericoronitis.

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Conflict of interest statement

There are no conflicts of interest.

Figures

Figure 1
Figure 1
Orthopantomograph showing semilunar-shaped radiolucency associated with the distal aspect of partially erupted 38
Figure 2
Figure 2
Gross specimen: partially erupted 38 with cystic lesion attached to the distobuccal aspect
Figure 3
Figure 3
(a) Photomicrograph of hematoxylin and eosin stained section showing hyperplastic cystic lining epithelium (black arrow) in association with inflamed connective tissue capsule. Implanted vegetable/plant material (red arrow) is also seen. (b) Hematoxylin and eosin (H and E) stained section showing hyaline ring (red arrow) and multinucleated giant cells (black arrow). Spherical structures with hematoxyphilic periphery and pale center (*) in the deeper parts of the connective tissue wall suggestive of vegetable/plant material. (c) H and E stained section showing roughly round structures resembling implanted phytoproduct (red arrow). (d) Periodic acid–Schiff stained section showing PAS-positive vegetable/plant material (black arrow). PAS – Periodic acid–Schiff
See this image and copyright information in PMC

References

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