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An intraoral combined blue naevus
1Department of Oral and Maxillo-facial Surgery, Manchester University Dental School.
The British Journal of Oral & Maxillofacial Surgery
|April 1, 1988
Summary
A rare combined blue nevus was found in the mouth, hidden by hyperkeratotic mucosa. Early surgical removal of oral nevi is recommended to prevent potential issues.
Area of Science:
- Oral pathology
- Dermatology
- Histopathology
Background:
- Blue nevi are benign melanocytic proliferations.
- Intraoral nevi are uncommon and can present diagnostic challenges.
- Hyperkeratosis can mask underlying pigmented lesions.
Observation:
- A combined blue nevus was identified beneath the epithelial surface of the lingual gingiva and anterior floor of the mouth.
- The lesion exhibited no visible pigmentation due to overlying hyperkeratotic mucosa.
- Histological examination revealed a mixture of intramucosal nevus cells and dendritic melanocytes.
Findings:
- The histological features were consistent with a common blue nevus.
- The combined nature of the nevus involved both intramucosal and potentially deeper components.
- Masking by hyperkeratosis is a significant clinical observation.
Implications:
- Prophylactic surgical excision of intraoral nevi is advised.
- Early diagnosis and management are crucial for intraoral pigmented lesions.
- Understanding the masking effect of hyperkeratosis is important for clinical evaluation.