Lymphoepithelial cyst - Oral Mucosal Lesion
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Synopsis
The oral lymphoepithelial cyst arises from proliferation of epithelium within lymphoid or tonsillar tissue. Some believe this epithelium represents enclaved or "trapped" epithelium while others believe it is of salivary gland origin. It generally occurs in the fourth decade of life with an equal sex predilection. The patient may feel a painless lump or swelling that is slow-growing.
Codes
ICD10CM:
L72.3 – Sebaceous cyst
SNOMEDCT:
67045005 – Lymphoepithelial cyst of mouth
L72.3 – Sebaceous cyst
SNOMEDCT:
67045005 – Lymphoepithelial cyst of mouth
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Diagnostic Pearls
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Differential Diagnosis & Pitfalls
- Lipomas – These tend to occur on the buccal mucosa, rather than where lymphoid tissue is present.
- Epidermoid and dermoid cysts – These tend to occur in the midline of the floor of the mouth and are generally larger.
- Hyperplastic lymphoid tissue
- Hyperplastic Fordyce spots (sebaceous glands)
- Granular cell tumors – These may be yellow but they tend to be firm and deeper in the mucosa.
Best Tests
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Management Pearls
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Therapy
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References
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Last Updated:01/19/2015
Lymphoepithelial cyst - Oral Mucosal Lesion