甲状腺癌下颌骨转移者少见,而甲状腺正常但在下颌骨发生甲状腺癌者更少见。我们诊治一例,报告如下。患者王某某,女,44岁,农民。住院号1033l。左下颌包块两年。逐渐长大,无明显疼痛。查体无异常发现,甲状腺不长大。张口正常,左下颌支明显膨大,包块约10×8×6cm,质硬,与皮肤不粘连,部份区域呈乒 Mandibular metastases from thyroid cancer are rare, while those with normal thyroid but thyroid cancer in the mandible are less common. We treat one case and report it as follows. Patient Wang Mou, female, 44 years old, farmer. The hospital number is 1033l. The left lower jaw mass for two years. Gradually grow up without obvious pain. There was no abnormality in the examination and the thyroid gland did not grow. The mouth is normal, the left lower jaw branch is inflated, and the mass is about 10×8×6cm. It is hard and has no adhesion to the skin.