A case of adenoid cystic carcinoma resected simultaneously both primary lesion arising in the sublingual gland and lung metastasis.

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In this report, we described the details of a lung metastasis of adenoid cystic carcinoma arising in the sublingual gland. A 49-year old male had the chief complaint of swelling at the left submandibular region, a malignant tumor was suspected by clinical diagnosis using CT scan, echography, and RI imaging scan. This showed an irregular centric solid mass in submandibular region. Breast X-ray also gave a suspicion of lung metastasis lesion by a phantom breast X-ray of posterioranterior finding, fuji computed tomography and CT scan. The patient has undergone resection of the primary tumor and middle lobe of the right lung. Irradiation of 50 Gy for the submandibular region and immunochemotherapy were followed postoperatively. Patient is alive and tumor free for 2 years 7 months. Histological examinations of both submandibular and lung lesions revealed adenoid cystic carcinoma (grade I, T2aN0M1, stage IV).
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