Objective To summarize research status of correlation of chronic lymphocytic thyroiditis (CLT) and papillary thyroid carcinoma (PTC), in order to provide a basis for early diagnosis, prognosis, and prevention of PTC. Method The literatures about the recent studies of the correlation of the CLT and PTC were reviewed according to the results searched from PubMed database, SpringerLink database, Web of Science database, Wanfang database, CNKI database, and VIP database. Results The most of patients with CLT combined with PTC are young women, the characteristics are multifocal and occult, the prognosis is good. Its genesis might be related to the ionizing radiation, iodine intake, endocrine disorders, immune disorders, molecular biology, and other factors. But there are still different controversies about its specific pathogenesis and surgical treatment. Conclusions CLT is closely related to PTC. However, relationship between CLT combined with PTC and changing regularity of molecular biology, pathogenesis, or prognosis needs further to be studied and followed-up for a longer-term.
Objective To analyze clinical and pathological features of patients with papillary thyroid carcinoma (PTC) with coexistent chronic lymphocytic thyroiditis (CLT). Methods The clinicopathologic data of 756 cases of PTC were collected from January 2014 to January 2017 in the First Affiliated Hospital, Xinjiang Medical University were collected. The patients were designed to observational group (PTC with coexistent CLT, n=194) and control group (simple PTC, n=562) according to whether CLT was diagnosed by pathology, then the clinical data, ultrasonic features, thyroid function, and pathological features in these two groups were compared. Results The proportion of the female patients, the proportions of theserum thyroid stimulating hormone and thyroid autoimmune antibodies (thyroglobulin antibody and thyroid peroxidase antibody), and the proportion of multifocal carcinoma in the observational group were significantly higher than those in the control group (P<0.05). There were no significant differences in the preoperative ultrasound, tumor diameter, thyroid capsule invasion, central lymph node metastasis, and TNM stage in these two groups (P>0.05). The results of the multivariate analysis showed that the female, serum thyroid autoimmune antibodies, and the multifocal carcinoma were the independent predictive factors of PTC with CLT (P<0.05). Conclusions There might be a certain correlation between PTC and CLT, PTC with coexistent CLT is more common in female patient and with multifocal carcinoma. With coexistent CLT does not increase invasion of PTC. This may be associated with limit of CLT to development of PTC nodules. It is speculated that CLT may be a protective factor of PTC.