Fig. 1From: Clinical application of computed tomography-guided 125I seed interstitial implantation for head and neck cancer patients with unmanageable cervical lymph node metastasesTreatment of a patient with cervical lymph node metastasis in primary nasopharyngeal carcinoma. a CT scan shows left neck lymph node metastasis before implantation. b CT scan shows that 125I seeds are implanted into the tumor via implantation needles. c CT scan shows that 125I seeds are implanted post-implantation 3 months. CT computed tomographyBack to article page