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A 57-year-old man presented in January, 2014 with progressive pain of right neck for 2 weeks. He had a 5-month history of squamous lung cancer. After treatment, the thoracic lesion had a nearly complete remission response. Cervical MRI revealed a huge mass located in the right region near the 3rd-7th cervical vertebras consistent with erector spinae metastasis (Figure 1a and 1b). The pathologic re-evaluation of the pulmonary primary tumor showed no EGFR gene mutation. Palliative radiotherapy of 60Gy/30f was performed to the muscular metastasis, concurrently with chemotherapy. We attained a stable disease response when he finished the cervical irradiation (Figure 1c) and 3 months after irradiation (Figure 1d). Pain was greatly relieved. Muscular metastasis from non small cell lung cancer is rare [1,2]. To our knowledge, this is the first report of cervical erector spinae metastasis from squamous lung cancer. Such rare metastasis should be kept in mind.