[The clinical analysis of thyriod carcinoma showing thymus-like differentiation].

OBJECTIVE

To investigate the clinical diagnosis, treatment and prognosis of carcinoma showing thymus-like differentiation (CASTLE) of thyroid, and to improve the understanding of CASTLE.

METHOD: In 6 patients with CASTLE, we performed region VI lymph node dissection, the lesion resection of thyroid lobe and isthmus. After the operation, except one case of 68 years old patient, the rest patients were treated with radiotherapy 60 Gy in anterior cervical region after third week of operation and 5 courses of chemotherapy with cisplatin, each interval of 2 weeks. Insist on the oral Euthyrox.

RESULT: All patients were alive without recurrence and metastasis.

CONCLUSION

The diagnosis of CASTLE depends on the histology and immunohistochemistry. Operation was the main treatment. CASTLE is a rare type of thyroid carcinoma with slow progress and good prognosis.