title: Occult papillary carcinoma of the thyroid appearing as lung metastasis.
mesh_terms: D002291:Carcinoma, Papillary / Q000473:pathology*; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000556:secondary*; D008875:Middle Aged; D013964:Thyroid Neoplasms / Q000473:pathology*