Oral Metastasis as a Harbinger of Terminal Lung Adenocarcinoma: A Case Study of Rare and Rapid Decline.

Lung cancer is one of the most prevalent cancers in the United States (U.S), with adenocarcinoma representing the most predominant subtype. Metastasis to the oral cavity from lung adenocarcinoma is exceedingly rare. This case report describes a patient with lung adenocarcinoma who developed oral metastases, presenting as exophytic lesions along the right maxillary and left mandibular alveolar ridges. The prognostic implications of such metastases are not well-reported in the literature due to the limited number of cases. This case highlights the crucial importance of timely evaluation of oral lesions in patients with known malignancies to facilitate early diagnosis, guide treatment, and improve prognostication and symptom management.