A Rare Case of SubmandibularGland Metastasis as the First Sign ofAdenocarcinoma of the Lung

The current study document is an unusual case of submandibular metastasis as the first sign of adenocarcinoma of the lung. We report a 57-year-old male chronic smoker presented with a tumefaction in the submandibular gland. The patient had a complete excision. At the histological examination, the diagnosis of an undifferentiated carcinoma of the submandibular gland was retained. A systemic work-up was performed, which unexpectedly detected a tumor in the right lung and was confirmed by histopathological examination. Despite their rarity, submandibular lesions should be considered as possible manifestations of underlying malignancies.