Intraoral blue (Jadassohn-Tieche) nevus

Area of Science:

• Oral pathology
• Dermatology
• Oncology

Background:

• Blue nevi are uncommon pigmented lesions of melanocytic origin.
• Literature review identified 31 previously reported cases of oral blue nevi.
• Oral blue nevi require differentiation from malignant melanoma.

Observation:

• A case of blue nevus on the hard palate of a 58-year-old male is presented.
• This lesion measured 1 by 1 mm, representing the smallest reported intraoral blue nevus.
• The most frequent location for oral blue nevi was the hard palate.

Findings:

• Clinicopathologic analysis suggests no age or sex predilection for oral blue nevi.
• The hard palate is the most common site of occurrence for these lesions.
• Oral blue nevi show no tendency for recurrence after removal.

Implications:

• Early diagnosis and biopsy are crucial for distinguishing blue nevi from oral melanoma.
• Understanding the clinical presentation and behavior of blue nevi aids in patient management.
• This case contributes to the understanding of rare oral pigmented lesions.