Presentation of cervical metastases and pathological mandibular fracture due to pulmonal adenocarcinoma: A case report.

•Oral metastatic tumors due to malignancies at distant locations are very rare.•Cervical metastases of level I and II due to adenocarcinoma of the lung have hardly been described before.•Diagnosis of unclear oral lesions requires extensive staging.•In cases of oligometastases in the oral region tumor resection may be a curative treatment.