甲状腺癌术后复发的CT表现

目的 分析甲状腺癌术后复发的ＣＴ表现，了解甲状腺术后复发的特点。方法 回顾性分析经手术及病理证实的甲状腺癌主后复发患者４２例，包括乳头状癌２５例，滤泡癌９例，髓样癌６例，透明细胞癌２例。结果 甲状腺床局部复发２３例，其中侵犯颈动脉１０例，气管、食管１７例，喉及下咽２例，９例滤泡癌中８例局部复发，７例肿特明显强化。对侧甲状腺复发１２例，病理类型与原发甲状腺癌一致。颈部淋巴结转移３１例，乳头状癌颈剖淋

CT manifestations of recurrent thyroid carcinoma

Objective To study the CT manifestations of recurrent thyroid carcinoma, in order to recognize the characteristics of recurrent thyroid carcinoma Methods 42 cases of recurrent thyroid carcinoma proved by surgery and pathology were reviewed, including papillary carcinoma (n=25), follicular carcinoma(n=9), medullary carcinoma (n=6) and clear cell carcinoma (n=2) Results Local recurrence in thyroid bed was found in 23 cases Invasion of carotid artery (n=2), trachea and esophagus (n=17), larynx and hypopharynx (n=2) was revealed by CT In 9 cases of follicular carcinoma 8 had local thyroid bed recurrence All of the 7 cases with contrast administration had enhancement of tumor mass Recurrence of contralateral lobe was seen in 12 cases, the pathologic types were the same as the primary carcinoma Cervical lymph node metastases were proved in 31 cases, being the major manifestation of papillary carcinoma (76%) Mediastinal lymph node metastases were found in 7 cases 75% of patients had more than one type of recurrences Conclusion The majority of recurrent thyroid carcinoma were found in cervical lymph node and thyroid bed Thyroid bed recurrence was most commonly seen in follicular carcinoma while cervical lymph node metastasis were frequent in papillary carcinoma The adjacent organs or structures was of ten invaded by local recurrent tumor