II. Epidemiology
- Incidence: 40-50% of newborns
III. Pathophysiology
- Superficial inclusion cysts due to retention of keratin (Keratin Cysts)
IV. Signs
- Tiny (1-2 mm), flat, pearl-white to yellow Papules or cysts
- Distribution
- Face is most typical (Forehead, cheeks, nose, chin)
- Other areas: Upper trunk, extremities and penis
- Oral Mucosal Lesions in newborns (Bohn Nodules)
- Lingual alveolar ridge or crest (Dental Lamina Cysts)
- Palate (Epstein's Pearls)
- Timing
- Present at birth
- Resolve spontaneously after 3-4 weeks
V. Management
- None needed
- Spontaneously resolve within first few months of life
VI. References
- Claudius and Behar in Herbert (2020) EM:Rap 20(8): 5-7
- Snyder (2024) Am Fam Physician 109(3): 212-6 [PubMed]