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Review
. 2022 May 20;101(20):e29246.
doi: 10.1097/MD.0000000000029246.

Lymphoepithelial cyst in the palatine tonsil: A case report and literature review

Jae Yeon Moon  1 , Namkyun Kim  2 , Ji Yun Jeong  3 , Jung Soo Kim  1 , Sung Jae Heo  1
Affiliations
Review

Lymphoepithelial cyst in the palatine tonsil: A case report and literature review

Jae Yeon Moon et al. Medicine (Baltimore). .

Abstract

Rationale: Lymphoepithelial cyst of the oral cavity is very rare. Most intraoral lymphoepithelial cysts are observed in the floor of the mouth and very few cases have been reported of its occurrence in the palatine tonsil.

Patient concerns: A 37-year-old healthy woman with no remarkable medical history visited our department with a complaint of frequent tonsillitis.

Interventions: On endoscopic examination, yellowish mass was observed in the palatine tonsil and removed via an intraoral approach. The mass was completely removed with the left palatine tonsil.

Diagnoses outcomes: Histopathological examination and immunohistochemical staining confirmed a Lymphoepithelial cyst.

Lessons: Lymphepithelial cysts of the palatine tonsils are extremely rare and are easily overlooked because there are few reported cases. Therefore, care must be taken when examining the tonsil mass.

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Conflict of interest statement

The authors have no funding and conflicts of interest to disclose.

Figures

Figure 1
Figure 1
On the laryngoscopic examination, a yellowish mass lesion was observed in upper portion of the left palatine tonsil.
Figure 2
Figure 2
The mass was oval and well encapsulated, 2.5 × 1.5 cm in size.
Figure 3
Figure 3
(A) Intratonsillar cystic mass 0.7 cm in size (×5, H&E stain), (B) The keratin material that filled the cyst was lined with stratified squamous epithelium and surrounded by lymphoid tissue with follicular lymphoid hyperplasia (×100, H&E stain).
See this image and copyright information in PMC

References

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