A developmental anomaly characterized by heterotrophic collections of sebaceous glands at various sites in oral cavity.
- Results from inclusion in oral cavity of ectoderm having some potentialities of skin in course of development of maxillary and mandibular process during embryonic life.
- SEX- no gender prediliction
- AGE- adults
- SITE- Oral mucosa
- Small yellow spots either discreatly seperated/forming relatively large plaques-projecting slightly above the surface of the tissue.
- bilaterally symmetrical pattern.
- most common sites include-
- oral mucosa
- retromolar area
- Lobules of sebaceous duct beneath the epithelium.
- sebaceous cells are polygonal with centrally located nucleus and foamy cytoplasm.
- these sebaceous glands are unassociated with hair follicles.
- may show keratin plugging.
No treatment is required.