Primary signet-ring squamous cell carcinoma of the oral cavity: The first intraoral case.

Conclusion: This finding together suggested squamous cell carcinoma originating from the excretory duct of the submandibular gland. This case illustrates a rare malignant neoplasm and the importance of oral examination, including palpation. This study reports the first case of signet-ring intraoral submucosal squamous cell carcinoma originating from the excretory duct of the submandibular gland.
Source: Head and Neck Oncology - Category: Cancer & Oncology Source Type: research