{'fraction_non_alphanumeric': 0.023350253807106598, 'fraction_numerical': 0.019289340101522844, 'mean_word_length': 5.012195121951219, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
[Cervical lymph node metastasis and blood metastasis of thyroid cancer].

OBJECTIVE
To evaluate the relevant factors for lymph cervical node metastases and blood metastases of thyroid cancer and to raise the level of diagnosis and treatment.


METHODS
225 cases of thyroid cancer were treated from Jan. 1984 to Dec. 1992. Their clinical characteristics, treatment, and pathologic features were described.


RESULTS
The metastasis of thyroid cancer was related to its pathologic and invasive features. Papillary and squamous cell carcinomas were characterized by local lymph metastasis. Their metastasis rate was 44.7%, and 3/3 respectively. Follicular carcinoma showed good differentiation but vessel metastasis with a metastatic rate of 18.2%. The metastasis rate was high and the prognosis poor, in undifferentiated cancer.


CONCLUSIONS
Better treatment results may be achieved if proper management of thyroid cancer is based on its pathologic type and extent of local infiltration.