At the time of diagnosis, not to rely too heavily on mass uneven surface texture and hard as thyroid cancer characteristics. Some of the mass of thyroid cancer can be soft, smooth, also the activity, which is not uncommon in papillary carcinoma. On the contrary, calcification serious thyroid cancer, nodules and thyroid sclerosis thyroiditis hard texture, surface Keli Gan, easily mistaken for thyroid cancer. Thyroid nodules that cystic lesions are considered benign, this is obviously not comprehensive. It is reported cystic malignant lesion was 1.4%, thyroid cancer rates with cystic nodule grew up and their increased.
131 Ⅰ or 99 mTc thyroid nodules scan can only reflect the shape and functions of isotope uptake, we can not determine their nature. However, clinical data show that in hot nodules, Wen nodules, cold nodules and cold nodules in the scanned image, the possibility of thyroid cancer followed by gradual increases. Scanning can be detected more than 0.5 cm nodule, as it lost the function of isotope uptake, without consideration for thyroid cancer , but attention should be paid to thyroid cancer is not always as cold nodules. In addition, the isotope distribution of defects and cancer related to the size, sometimes functional impairment of the tumor image can be concealed by the normal thyroid tissue. A small number of thyroid cancer appear as a hot nodules.
These checks can not be confirmed, the possible fine needle aspiration cytology, preferably before surgery on the 1st, the high rate of diagnosis. In 10 percent cases the cells can not make any further request, still need surgical exploration, the Organization for examination.
Of medullary thyroid carcinoma, serum calcitonin can be applied to the determination and calcium or-5-Qin stimulate the stomach to make diagnostic tests.
Individual patients suffering from thyroid cancer grade higher, the first performance for the transfer of cervical cancer and swollen lymph nodes, the primary thyroid cancer patients are not aware of it, generally speaking, more thyroid nodules single nodules or nodules Goiter more likely malignant. Patients have the following performance should alert the possibility of cancer nodules.
① endemic goiter in non-endemic areas, 14 children under the age of the individual thyroid nodules, of which 10% to 50% of malignant. But they are well-differentiated thyroid cancer.
② adult males in the single thyroid nodules.
③ years of the thyroid nodule, increased significantly in the short term.
④ coastal living patients, single nodule opportunities for cancer than from endemic areas of endemic goiter patients is higher.
⑤ childhood head and neck had received radiotherapy for patients with thyroid nodules more suspicious individual.
⑥ investigation of performance nodular texture hard, with fixed or irregular ipsilateral neck lymph nodes. Vocal cord paralysis.
⑦ neck film showed calcification in the shadow of the thyroid for Yun Wuzhuang or granular. Irregular border, thyroid cancer caused by stenosis is often around tracks, diameter can be normal.
⑧ B super-examination was solid or cystic, internal echo uneven, unclear and irregular border.
⑨ puncture revealed tumor cells, extracts of cystic tumor may gradually become dark red, this is papillary thyroid cancer metastasis a characteristic.
