title: Retropharyngeal spread of carcinoma of the thyroid.
mesh_terms: D000230:Adenocarcinoma / Q000532:radiotherapy*; D000328:Adult; D002291:Carcinoma, Papillary / Q000532:radiotherapy*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007456:Iodine Isotopes; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009380:Neoplasms, Nerve Tissue / Q000532:radiotherapy*; D010610:Pharyngeal Neoplasms / Q000532:radiotherapy*; D012888:Skull Neoplasms / Q000532:radiotherapy*; D013125:Spinal Neoplasms / Q000532:radiotherapy*; D013964:Thyroid Neoplasms / Q000532:radiotherapy* / Q000601:surgery
chemical_list: D007456:Iodine Isotopes