The American Thyroid Association (ATA) published the Management Guidelines for Children with Thyroid Nodules and Differentiated Thyroid Cancer in July,2015.This article introduced the guidelines and discussed the differences between children and adult guidelines as an assistance for clinicians to better know the Management Guidelines for Children with Thyroid Nodules and Differentiated Thyroid Cancer.

Objective To evaluate the preoperative nutritional status of patients with colorectal carcinoma by using the nutritional risk screening 2002 (NRS2002) score and its prediction for postoperative outcomes.Methods Retrospectively evaluated the nutritional risk of 259 colorectal cancer patients with NRS2002 score in terms of different sexes,ages,tumor location,pathology and differentiation,Dukes stages.The relationship between different NRS2002 score and postoperative complications and hospital stay were also observed.Results NRS2002 score was applicable in 243 cases,≥ 3 scores of 80 cases,＜ 3 scores of 163 cases.Gender,histological differentiation and before surgery NRS2002 score unrelated (P ＞ 0.05).Ages,tumor location,and Dukes stages related NRS2002 score (P ＜ 0.01).No case of perioperative death,hospital stay 10-101 (21.6 ± 9.7) d.The incidence of complications in ≥ 3 scores patients was significantly higher than that in ＜ 3 scores patients [30.0％ (24/80) vs.17.2 ％ (28/163),P ＜ 0.05],hospital stay in ≥ 3 scores patients was significantly shorter than that in ＜ 3 scores patients[(20.5 ± 8.2) d vs.(23.9 ± 11.9) d,P＜ 0.05].Multiple Logistic regression analysis showed that gender,age,tumor location,histological differentiation,Dukes stages,surgical and colorectal cancer complications unrelated (P ＞ 0.05),NRS2002 score associated with colorectal cancer complications (P ＜ 0.05).Pearson correlation analysis showed that hospital stay correlated with NRS2002 score (P ＜ 0.01).Conclusions NRS2002 score is applicable in Chinese colorectal cancer patients.The youth and the elderly,the proximal part of colon,and Dukes D stage patients are more liable to develop preoperative nutritional risk than those of middle age,the distal part of colon,or other Dukes stages.≥ 3 scores predicts higher postoperative complications and longer hospital stay.Preoperative nutritional support is necessary in patients with ≥ 3 scores.

Objective: To analyze the pathological features and their influence on the clinical outcome of non-nasopharyngeal EBV-associated carcinomas. Methods: One hundred and twenty cases of non-nasopharyngeal EBV-associated carcinoma confirmed by in situ hybridization were identified at Zhejiang Cancer Hospital from January 1, 2006 to May 1, 2018, and the clinicopathological data were collected and analyzed using Kaplan-Meier survival analysis, Cox univariate and multivariate analysis. Results: One hundred and twenty cases were involved in the study; the male to female ratio was 1∶1; patients′ age range was 24 to 89 years (median 50 years). The primary sites were large parotid glands (62 cases), lung(26 cases), stomach(15 cases), and others (oral, oropharynx, larynx, cervix, liver; totally 17cases). Non-nasopharyngeal EBV-associated cancer could be divided into two histological types according to the amount of interstitial lymphocytes: type Ⅰ was "lymphoepithelial-like carcinoma" and rich in stromal lymphocytes; type Ⅱ lacked lymphocytic infiltration. Ninety-eight primary tumor samples could be classified morphologically: 43 cases were as type Ⅰ and 55 cases as typeⅡ; the distribution of type Ⅰ was 57.4% (27/47) in large parotid glands, 20.8% (5/24) in lung, 4/13 in stomach, and 7/14 in other sites. Complete treatment and survival data were obtained for 114 patients. According to the TNM staging criteria of WHO, 52 patients were at early stages (Ⅰ-Ⅱ) and 62 were at advanced stages (Ⅲ-Ⅳ); 102 patients underwent surgery. Seventy-four patients received adjuvant chemotherapy before or after surgery, and 52 patients received local radiotherapy. Kaplan-Meier survival analysis showed that patients with type Ⅱ EBV-associated carcinoma had a worse prognosis than patients with type Ⅰtumors (P=0.010 2). In addition, vascular invasion(P=0.021 8),neural recidivism(P=0.000 1),advanced stage(P=0.017 1),lymph node metastasis (P=0.005 0) and chemotherapy (P=0.013 2) were poor prognostic factors; female patients had better survival than male (P=0.028 4). Cox multivariate regression analysis found that lymph node metastasis (95%CI: 1.489-13.830, P=0.007 6) and neural recidivism (95%CI: 1.228-6.544, P=0.014 7) were independent adverse prognostic factors. Cox multivariate regression analysis after stratification by site revealed that radiotherapy was a preferable prognostic factor for EBV-associated carcinoma of the large salivary glands (95%CI: 0.003-0.569, P=0.016 8). Conclusion EBV associated carcinoma can be divided into two types, for which type Ⅰ was with abundant interstitial lymphocytes and type Ⅱ was lack of interstitial lymphocytes. TypeⅡ EBV-associated carcinoma has a worse prognosis than type Ⅰ. Radiation therapy can prolong the survival time of patients with primary EBV-associated carcinoma of large salivary glands.