BACKGROUNDPulmonary blastoma is a rare primary malignancy of the lung. It is now recognized in two forms: adult type pulmonary blastoma and childhood pleuropulmonary blastoma. The clinical characteristics, diagnosis and treatments of adult type pulmonary blastoma are discussed in this article.

METHODSThe clinical records of 5 patients with adult type pulmonary blastoma admitted in Cancer Center, Sun Yet-sen University from 1964 to 2004 were analyzed and the literature on pulmonary blastoma was reviewed.

RESULTSThree patients were male and two were female with the ages ranged from 22 years old to 70. Their symptoms consisted mainly of cough, hemoptysis and chest pain. The pulmonary blastomas were mainly manifested as a solitary parenchymal mass of the lung on chest radiograph and CT. None of these patients was diognosed by fibrobronchoscopy nor sputum cytology. Three patients underwent lobectomy, one underwent pneumonectomy, and these four patients underwent mediastinal lymph node resection also. The fifth one received wedge resection and postoperative chemotherapy. At the end of follow-up, three patients died and two was alive, and the survival time was from 6 months to 11 years.

CONCLUSIONSPulmonary blastoma is difficult to be diagnosed before operation. Surgery is the best therapeutic choice up to now. It has poor response to radiotherapy and chemotherapy. The prognosis of patient with pulmonary blastoma is variable.

Objective To analyze the relationship between serum a proliferation inducing ligand(APRIL)and galactin-1(Gal-1)levels with clinical features and prognosis in patients with epithelial ovarian cancer(EOC).Methods EOC patients(n=132)who admitted in Handan Hangang Hospital of Hebei Province from January 2018 to June 2020 were selected as the cancer group,and were grouped into a survival group(n=56)and a death group(n=76)based on their three-year survival after discharge.Meanwhile,healthy in-dividuals(n=68)who underwent physical examination were regarded as the healthy group.Enzyme linked immunosorbent assay was applied to detect serum APRIL and Gal-1 levels in all subjects.Clinical data of all patients were collected and their relationship with serum APRIL,Gal-1 levels and prognosis was analyzed.Ka-plan-Meier method was applied to analyze the relationship between serum APRIL and Gal-1 levels and the prognosis of EOC patients.Cox regression was applied to analyze the relevant factors affecting the prognostic death of EOC patients.The prognostic value of serum APRIL in patients with EOC was analyzed by receiver operating characteristic(ROC)curve.Results The serum APRIL and Gal-1 expression levels in the cancer group were greatly higher than those in the healthy group,and the differences were statistically significant(P＜0.05).The serum APRIL and Gal-1 levels in the death group were greatly higher than those in the sur-vival group,and the differences were statistically significant(P＜0.05).Clinical data analysis showed that se-rum APRIL and Gal-1 levels were not related to the age of EOC patients(P＞0.05),but were related to tumor location,tumor diameter,The International Febderation of Gynecology and Obstetrics(FIGO)staging,differentiation degree,lymph node metastasis,histological classification,and levels of cancer antigen 125(CA125)and human epididymis protein 4(HE4),and FIGO staging,differentiation degree,lymph node me-tastasis,histological classification,and levels of CA125 and HE4 also significantly affected the prognosis of pa-tients(P＜0.05).FIGO stage Ⅲ+Ⅳ,low differentiation,lymph node metastasis,serous tissue classification,CA125≥200 U/mL,HE4≥200 pmol/L,and high expression of APRIL and Gal-1 were all risk factors for prognostic death in EOC patients(P＜0.05).The three-year survival rate of APRIL high expression patients(25.37％)was greatly lower than that of APRIL low expression patients(60.00％),and the three-year sur-vival rate of Gal-1 high expression patients(27.94％)was greatly lower than that of Gal-1 low expression pa-tients(57.81％),,and the differences were statistically significant(P＜0.05).ROC curve showed that the ar-ea under the curve(AUC)of the combination of APRIL and Gal-1 for predicting the prognosis was 0.925,which was significantly higher than that of the diagnosis of the two alone,(Zcombined-APRIL=4.061,P＜0.001,Zcombined-Gal-1=3.424,P＜0.001),with a sensitivity and specificity of 86.84％and 83.93％,respectively.Conclu-sion The expression levels of serum APRIL and Gal-1 are greatly elevated in EOC patients,and their levels are related to tumor location,tumor diameter,FIGO staging,lymph node metastasis,histological classifica-tion,CA1 25,HE4,and differentiation degree.The expression levels of both have great application value in the prognosis evaluation of EOC patients.

【Objective】 To investigate the detection of pathogenic microorganisms in umbilical cord blood and maternal blood from 2012 to 2021, so as to improve the collection of umbilical cord blood and guarantee the safety of umbilical cord blood hematopoietic stem cells (HSC) . 【Methods】 Detection results of pathogenic microorganisms of umbilical cord blood and maternal blood among 64 077 cases from Tianjin Cord Blood Bank from 2012 to 2021 were retrospectively analyzed. 【Results】 A total of, 2 072 cases (3.23%) were detected positive, among which, 184 cases (0.29%) were positive for aerobic bacteria culture, 1 504 cases (2.34%) were positive for anaerobic bacteria culture, and 384 cases (0.60%) were positive for both aerobic and anaerobic bacteria culture. From 2012 to 2021,the overall positive rate showed a downward trend, with a difference in the positive rate between each year (P<0.05). The positive rate of anaerobic bacteria was higher than that of aerobic bacteria and that of anaerobic and aerobic bacteria (P<0.05). After Gram staining, the microscopic detection rate of bacterial positive samples was highest in G^- bacilli, followed by G⁺ bacilli, G⁺ cocci, G^- cocci and others. Among the 64 077 cases, 169 cases (0.26%) showed reactivity in cord blood tests and 1 231 cases (1.92%) showed reactivity in maternal blood tests. Umbilical cord blood and maternal blood HIV-Ag/Ab tests showed reactivity after initial screening. After confirmation by Western blotting, there was 1 case of uncertain maternal blood, while the rest were negative. The reactive rates of anti-TP (0.12%) and anti- HCV (0.11%) in umbilical cord blood were higher than those of HBsAg (0.03%) and CMV-IgM (1/64 077).There was a difference in the reactive rate of anti-TP detection in umbilical cord blood between different years (P<0.05),while there was no statistically significant difference in that of HBsAg, anti-HCV and CMV-IgM (P> 0.05).The reactive rate of HBsAg in maternal blood (1.38%) was higher than that of CMV-IgM(0.29%) , anti-TP(0.13%) and anti-HCV (0.12%) . There were differences in the reactive rates of HBsAg, anti-HCV ,and anti-TP in maternal blood among different years (P<0.05),and that of HBsAg showed a decreasing trend, while the reactive rate of CMV-IgM was not statistically significant (P>0.05). The reactive rates of HBsAg and CMV-IgM detected in maternal blood were significantly higher than those in umbilical cord blood (P<0.05) . The reactive rates of anti-HCV and anti-TP in maternal blood were consistent with those in umbilical cord blood (P>0.05). 【Conclusion】 The reactive rates of anti-HIV and CMV-IgM in cord blood, and that of anti-HIV in maternal blood are low, but those of anti-TP and anti-HCV in cord blood are relatively high. The reactive rate of HBsAg is high in maternal blood,but with a downward trend,but low in umbilical cord blood due to maternal-infantile transmission blocking. The detection of transfusion transmitted pathogens and bacteria plays a critical role on the safety of umbilical cord blood HSCs. Effective detection of transfusion transmitted pathogens and culture of bacteria are the key to ensure the quality of umbilical cord blood, which can improve the safety of umbilical cord blood HSCs transplantation.