Objective To explore the expression and prognostic significance of histone demethylase JMJD2B and HIF-1α in rhabdomyosarcoma(RMS) tissues. Methods A total of 78 RMS patients were followed up to obtain survival time, and immunohistochemical staining was used to detect the expression of JMJD2B and HIF-1α in RMS tissues and analyze their relation with clinicopathological characteristics and prognosis. Results Among the 78 samples, there were 46 (59.0%) and 44 (56.4%) cases of positive expression of JMJD2B and HIF-1α, respectively. The expression of JMJD2B and HIF-1α were positively correlated (P < 0.001, r=0.518) and related to tumor risk, metastasis, IRS staging and neoadjuvant chemotherapy (all P < 0.05). The Kaplan-Meier survival curve and univariate Cox regression analysis showed that the risk level, neoadjuvant chemotherapy, the expression of HIF-1α and JMJD2B were related to the prognosis of patients (all P < 0.05). Multivariate Cox regression analysis showed that JMJD2B (HR=3.161, P=0.039) and risk degree (HR=2.925, P=0.001) could be used as independent prognostic factors for RMS patients. Conclusion JMJD2B and HIF-1α expression are both significantly related to the overall survival of rhabdomyosarcoma patients, and JMJD2B is an independent prognostic indicator.

Lymph node metastasis is the main mode of metastasis of thyroid papillary carcinoma.In the central compartment lymph node dissection,the lymph node posterior to right recurrent laryngeal nerve is hidden because of its deep anatomical position,which is easy to be missed during the operation and becomes one of the factors that affect the recurrence of thyroid papillary carcinoma.The metastasis rate of lymph node posterior to right recurrent laryngeal nerve is 10％-30％,which is related to the tumor size,location and other factors,and its position in the surgical treatment of thyroid cancer is increasingly prominent.

OBJECTIVE To analyze the new features in diagnosis and treatment of parathyroid tumor co-existent with thyroid disease. METHODS The clinical data of 98 patients with parathyroid tumors from Jan.2007 to Dec.2016, in Zhejiang Cancer Hospital were retrospective analyzed. RESULTS In all 98 cases, there were 22 cases mistaken as thyroid disease before surgery. The misdiagnosis rate was higher(36.2％), when combined with thyroid disease. When co-existent with thyroid disease, the qualitative diagnosis rate of the ultrasound and CT will be decreased, it was easy to misdiagnosis. Logistic regression analysis showed that parathyroid tumor location, hyperparathyroidism, cystic parathyroid tumor affected the accuracy of the qualitative diagnosis of ultrasound. The size of the parathyroid tumor affected the accuracy of the qualitative diagnosis of CT. Three of 9 patients underwent bilateral thyroid cancer and parathyroid tumor resection presented permanent hypoparathyroidism(33％). CONCLUSION When combined with thyroid disease, parathyroid tumor is easy to be misdiagnosed, the qualitative diagnosis rate of the ultrasound and CT will also decreased. When combined with thyroid cancer, these will be a higher risk of hypoparathyroidism after bilateral thyroid cancer and parathyroid tumor resection.

Objective:To investiqate the clinical and CT features of anaplastic thyroid carcinoma.Methods:The clinical and CT data of 23 anaplastic thyroid carcinoma patients were retrospectively analyzed, mainly including gender, age, chief complaint, and CT signs such as tumor size, distribution status, morphology, calcification, necrosis, peripheral invasion, lymph node metastasis and lung metastasis.Results:Among 23 cases of ATC, the ratio of male to female was 7∶16. 21 cases (91.3%) had hoarseness or cervical mass, 8 cases (34.8%) had rapid enlargement of tumor size, 6 cases (26.1%) with lesion in unilateral lobe, 8 cases (34.8%) in unilateral lobe + isthmus, 9 cases (39.1%) in bilateral lobe + isthmus, diameter of tumors was (6.1 ± 1.7) cm, 20 cases (87.0%) had irregular shape of tumors. 16 cases (69.6%) with rough calcification, 17 cases (73.9%) with extensive necrosis, 15 cases (65.2%) with tracheoesophageal groove extension, 18 cases (78.3%) with cervical lymph node metastasis, 8 cases (34.8%) with lung metastasis, 16 cases (69.6%) with trachea invasion, 7 cases (30.4%) with common carotid artery invasion, and 10 cases (43.5%) with internal jugular vein invasion.Conclusions:The clinical features include elderly women patients, big tumors size, rapid enlargement of tumor size, CT signs include irregular shape, coarse calcification, extensive necrosis, tracheoesophageal groove extension, cervical lymph node metastasis, lung metastasis and invasion of trachea, common carotid artery and internal jugular vein. These features have great value in the diagnosis of ATC and evaluation of peripheral structure invasion, cervical lymph node metastasis and distant metastasis.

Objective: To investigate the value of detecting circulating tumor cells (CTCs) in patients with local advanced head and neck squamous cell carcinoma (LAHNSCC). Methods: Twenty cases of LAHNSCC and eight healthy cases as the negative control were collected. The clinicopathological factors were evaluated. The LAHNSCC CTCs were enriched by specific antibody nanofluidic chip immunoassay using CytoSorter CTCs sorting system. LAHNSCC CTCs were identified by immunofluorescence staining. The relationships between CTCs and the clinicopathological features of LAHNSCC were analyzed. The numbers of CTCs were monitored and compared two weeks after inductive chemotherapy and at the end of the treatment. Results: CTCs were detect in 15 (75%) 20 patients with LASHNCC, with an average number of 22.4 CTCs. There was a correlation between the numbers of CTCs and age or N staging (P<0.05). Among the 15 cases with CTCs, 13 cases received inductive chemotherapy, for whom CTCs were detected again after inductive chemotherapy in all of these 13 patients, with an average number of 9.5 CTCs. Ten of the fourteen cases (71.4%) were still CTCs detected After whole treatments CTCs were detected in 14 patients, of them, 10 (71.4%) patients showed positive CTCs, with an average 1.6 CTCs. The numbers of CTCs decreased after either inductive chemotherapy or the whole treatment. The number of detected CTCs after whole treatment decreased nearly to background levels. Conclusions CTCs have a high detection rate in the peripheral blood of patients with LAHNSCC, especially in patients ≥60 years old and with ≥ N2 stage before treatment. Real-time detection of dynamic change of CTCs may assist to evaluate therapeutic effect.