Phantom tumor of the lung is an infrequent presentation of volume overload in congestive heart failure. This finding is often mistaken for a lung mass that leads to extensive workup and unnecessary treatments. A 75-ye...Phantom tumor of the lung is an infrequent presentation of volume overload in congestive heart failure. This finding is often mistaken for a lung mass that leads to extensive workup and unnecessary treatments. A 75-year-old male was evaluated for a right lower lobe rounded opacity. A transthoracic echocardiogram showed normal left ventricular function. Biopsy of the mass was unremarkable. Patient was managed with diuretics, and subsequent lung imaging revealed resolution of the opacity.展开更多
Centrifugal ultrafiltration after methanol extraction of whole plasma was used as an optimal condition for the preparation of blood plasma before metabonomic studies. The plasma samples from 102 lung cancer patients a...Centrifugal ultrafiltration after methanol extraction of whole plasma was used as an optimal condition for the preparation of blood plasma before metabonomic studies. The plasma samples from 102 lung cancer patients and 34 healthy volunteers were prepared with this approach. With ultra-performance liquid chromatography（UPLC） coupled with quadrupole time-of-flight mass spectrometry（Q-TOF MS） analysis, the samples were investigated in order to find potential disease biomarkers. After data acquisition, orthogonal signal correction partial least squares models were built to differentiate the healthy volunteers from lung cancer patients and to identify metabolites that showed significantly different expression between the two groups. Several metabolite ions were identified as potential biomarkers according to the variable importance in the project（VIP） value in both ion modes. Five lysophosphatidylcholines were further identified as specifically lysoPC 16：0, isomer of lysoPC 16：0, lysoPC 18：0, lysoPC 18：1 and lysoPC 18：2. These results suggest that UPLC coupled with Q-TOF MS is an effective technique for the analysis of plasma metabolites in metabonomic studies.展开更多
Computed tomography (CT)-guided lung biopsy is a common diagnostic procedure that is associated with various complications, including pneumothorax, hemoptysis and parenchymal hemorrhage. Systemic air embolism is a ver...Computed tomography (CT)-guided lung biopsy is a common diagnostic procedure that is associated with various complications, including pneumothorax, hemoptysis and parenchymal hemorrhage. Systemic air embolism is a very rare (0.07%) but potentially lifethreatening complication. We report a fatal case of air embolism to the cerebral and coronary arteries confirmed by head and chest CT, followed by a review of the literature.展开更多
BACKGROUND Paragonimiasis is a food-borne parasitic infection caused by lung flukes of the genus Paragonimus. Although the most common site of infection is the pleuropulmonary area, the parasite can also reach other p...BACKGROUND Paragonimiasis is a food-borne parasitic infection caused by lung flukes of the genus Paragonimus. Although the most common site of infection is the pleuropulmonary area, the parasite can also reach other parts of the body on its journey from the intestines to the lungs, ending up in locations such as the brain,abdomen, skin, and subcutaneous tissues. Ectopic paragonimiasis is difficult to diagnose due to the rarity of this disease.CASE SUMMARY Here, we report a rare case of simultaneous breast and pulmonary paragonimiasis in a woman presenting painless breast mass and lung nodule with a history of eating raw trout. To confirm the diagnosis, serologic testing and tissue confirmation of the breast mass were performed. The patient was treated with surgical resection of the mass and praziquantel medication.CONCLUSION Ectopic paragonimiasis is difficult to diagnose due to the rarity of this disease.Thus, thorough history-taking and clinical suspicion of parasitic infection are important.展开更多
To identify potential serum biomarkers that could be used to discriminate lung cancers from normal. Methods Proteomic spectra of twenty-eight serum samples from patients with non-small cell lung cancer and twelve f...To identify potential serum biomarkers that could be used to discriminate lung cancers from normal. Methods Proteomic spectra of twenty-eight serum samples from patients with non-small cell lung cancer and twelve from normal individuals were generated by SELDI (Surfaced Enhanced Laser Desorption/Ionization) Mass Spectrometry. Anion-exchange columns were used to fractionate the sera into 6 designated pH groups. Two different types of protein chip arrays, IMAC-Cu and WCX2, were employed. Samples were examined in PBSII Protein Chip Reader (Ciphergen Biosystem Inc) and the discriminatory profiling between cancer and normal samples was analyzed with Biomarker Pattern software. Results Five distinct potential lung cancer biomarkers with higher sensitivity and specificity were found, with four common biomarkers in both IMAC-Cu and WCX2 chip; the remaining biomarker occurred only in WCX2 chip. Two biomarkers were up-regulated while three biomarkers were down-regulated in the serum samples from patients with non-small cell lung cancer. The sensitivities provided by the individual biomarkers were 75%-96.43% and specificities were 75%-100%. Conclusions The preliminary results suggest that serum is a capable resource for detecting specific non-small cell lung cancer biomarkers. SELDI mass spectrometry is a useful tool for the detection and identification of new potential biomarker of non-small cell lung cancer in serum.展开更多
The prognosis for patients with non-small cell lung cancer (NSCLC) remains poor in spite of better treatments. This relates mainly to the fact that the majority of patients present with advanced disease. There is a ne...The prognosis for patients with non-small cell lung cancer (NSCLC) remains poor in spite of better treatments. This relates mainly to the fact that the majority of patients present with advanced disease. There is a need to identify tools which can improve screening for lung cancer in the at risk patient population. The aim of this study was to compare the breath proteomic profile of NSCLC patients with healthy control subjects to explore the potential of new biomarkers of lung cancer. Comparative proteomic analysis of exhaled breath condensate (EBC) between 14 patients with NSCLC and 13 healthy control subjects were carried out using LTQ FT Ultra mass spectrometry and database searching to determine any unique proteins. In total, 29 unique proteins were identified using multiple protein identification algorithms. A comparison of lung cancer, smoker, and ex-smoker proteomes showed that 18 proteins were shared among the three groups. While one unique protein was found in smokers and lung cancer patients, four proteins were unique to ex-smokers. This data set provides a foundation for evaluation of these proteins from EBC as potential biomarkers for non-invasive lung cancer diagnosis.展开更多
BACKGROUND: Although the serum carcinoembryonic antigen (CEA) concentration is the well-known prognostic marker of non-small cell lung cancer (NSCLC), serum CEA concentration has been reported to be affected by smokin...BACKGROUND: Although the serum carcinoembryonic antigen (CEA) concentration is the well-known prognostic marker of non-small cell lung cancer (NSCLC), serum CEA concentration has been reported to be affected by smoking status and body mass index (BMI). There are no previous investigations that examined the relationship between BMI and serum CEA concentration in thoracic disease, including NSCLC. METHODS: Consecutive 384 NSCLC patients and 87 patients with benign thoracic disease were enrolled. The relationship between serum CEA concentration and smoking status and BMI in patients with benign thoracic benign disease and NSCLC was examined. RESULTS: In patients with benign thoracic disease, serum CEA concentration significantly increased with smoking status and Brinkman index. However, serum CEA concentration was not related with BMI. Serum CEA concentration of patients with NSCLC was significantly higher than those with benign disease. In NSCLC patients, the relationship between serum CEA concentration and smoking status was also found. A significant relationship between serum CEA concentration and smoking status was also found in patients with adenocarcinoma which is known to have weaker associations with smoking in carcinogenesis. On the other hand, we failed to find the relationship between serum CEA concentration and BMI in NSCLC patients. CONCLUSION: Serum CEA concentration may be affected by smoking status but not BMI in our Japanese patients with thoracic disease.展开更多
文摘Phantom tumor of the lung is an infrequent presentation of volume overload in congestive heart failure. This finding is often mistaken for a lung mass that leads to extensive workup and unnecessary treatments. A 75-year-old male was evaluated for a right lower lobe rounded opacity. A transthoracic echocardiogram showed normal left ventricular function. Biopsy of the mass was unremarkable. Patient was managed with diuretics, and subsequent lung imaging revealed resolution of the opacity.
基金Supported by the National Natural Science Foundation of China(No.30801513)the Knowledge Innovation Program of Chinese Academy of Sciences(No.KSCX2-YW-R-170)
文摘Centrifugal ultrafiltration after methanol extraction of whole plasma was used as an optimal condition for the preparation of blood plasma before metabonomic studies. The plasma samples from 102 lung cancer patients and 34 healthy volunteers were prepared with this approach. With ultra-performance liquid chromatography（UPLC） coupled with quadrupole time-of-flight mass spectrometry（Q-TOF MS） analysis, the samples were investigated in order to find potential disease biomarkers. After data acquisition, orthogonal signal correction partial least squares models were built to differentiate the healthy volunteers from lung cancer patients and to identify metabolites that showed significantly different expression between the two groups. Several metabolite ions were identified as potential biomarkers according to the variable importance in the project（VIP） value in both ion modes. Five lysophosphatidylcholines were further identified as specifically lysoPC 16：0, isomer of lysoPC 16：0, lysoPC 18：0, lysoPC 18：1 and lysoPC 18：2. These results suggest that UPLC coupled with Q-TOF MS is an effective technique for the analysis of plasma metabolites in metabonomic studies.
文摘Computed tomography (CT)-guided lung biopsy is a common diagnostic procedure that is associated with various complications, including pneumothorax, hemoptysis and parenchymal hemorrhage. Systemic air embolism is a very rare (0.07%) but potentially lifethreatening complication. We report a fatal case of air embolism to the cerebral and coronary arteries confirmed by head and chest CT, followed by a review of the literature.
文摘BACKGROUND Paragonimiasis is a food-borne parasitic infection caused by lung flukes of the genus Paragonimus. Although the most common site of infection is the pleuropulmonary area, the parasite can also reach other parts of the body on its journey from the intestines to the lungs, ending up in locations such as the brain,abdomen, skin, and subcutaneous tissues. Ectopic paragonimiasis is difficult to diagnose due to the rarity of this disease.CASE SUMMARY Here, we report a rare case of simultaneous breast and pulmonary paragonimiasis in a woman presenting painless breast mass and lung nodule with a history of eating raw trout. To confirm the diagnosis, serologic testing and tissue confirmation of the breast mass were performed. The patient was treated with surgical resection of the mass and praziquantel medication.CONCLUSION Ectopic paragonimiasis is difficult to diagnose due to the rarity of this disease.Thus, thorough history-taking and clinical suspicion of parasitic infection are important.
基金The research was supported by brainstorm protect and public good fund from the National Science and Technology Ministry of China. (2001BA704B01&2001DIA10001)
基金Science Technology Key Project of Ministry of Education (Grant No.272006) and the Major State Basic Research Project (Grant No.G1999053901).
文摘To identify potential serum biomarkers that could be used to discriminate lung cancers from normal. Methods Proteomic spectra of twenty-eight serum samples from patients with non-small cell lung cancer and twelve from normal individuals were generated by SELDI (Surfaced Enhanced Laser Desorption/Ionization) Mass Spectrometry. Anion-exchange columns were used to fractionate the sera into 6 designated pH groups. Two different types of protein chip arrays, IMAC-Cu and WCX2, were employed. Samples were examined in PBSII Protein Chip Reader (Ciphergen Biosystem Inc) and the discriminatory profiling between cancer and normal samples was analyzed with Biomarker Pattern software. Results Five distinct potential lung cancer biomarkers with higher sensitivity and specificity were found, with four common biomarkers in both IMAC-Cu and WCX2 chip; the remaining biomarker occurred only in WCX2 chip. Two biomarkers were up-regulated while three biomarkers were down-regulated in the serum samples from patients with non-small cell lung cancer. The sensitivities provided by the individual biomarkers were 75%-96.43% and specificities were 75%-100%. Conclusions The preliminary results suggest that serum is a capable resource for detecting specific non-small cell lung cancer biomarkers. SELDI mass spectrometry is a useful tool for the detection and identification of new potential biomarker of non-small cell lung cancer in serum.
文摘The prognosis for patients with non-small cell lung cancer (NSCLC) remains poor in spite of better treatments. This relates mainly to the fact that the majority of patients present with advanced disease. There is a need to identify tools which can improve screening for lung cancer in the at risk patient population. The aim of this study was to compare the breath proteomic profile of NSCLC patients with healthy control subjects to explore the potential of new biomarkers of lung cancer. Comparative proteomic analysis of exhaled breath condensate (EBC) between 14 patients with NSCLC and 13 healthy control subjects were carried out using LTQ FT Ultra mass spectrometry and database searching to determine any unique proteins. In total, 29 unique proteins were identified using multiple protein identification algorithms. A comparison of lung cancer, smoker, and ex-smoker proteomes showed that 18 proteins were shared among the three groups. While one unique protein was found in smokers and lung cancer patients, four proteins were unique to ex-smokers. This data set provides a foundation for evaluation of these proteins from EBC as potential biomarkers for non-invasive lung cancer diagnosis.
文摘BACKGROUND: Although the serum carcinoembryonic antigen (CEA) concentration is the well-known prognostic marker of non-small cell lung cancer (NSCLC), serum CEA concentration has been reported to be affected by smoking status and body mass index (BMI). There are no previous investigations that examined the relationship between BMI and serum CEA concentration in thoracic disease, including NSCLC. METHODS: Consecutive 384 NSCLC patients and 87 patients with benign thoracic disease were enrolled. The relationship between serum CEA concentration and smoking status and BMI in patients with benign thoracic benign disease and NSCLC was examined. RESULTS: In patients with benign thoracic disease, serum CEA concentration significantly increased with smoking status and Brinkman index. However, serum CEA concentration was not related with BMI. Serum CEA concentration of patients with NSCLC was significantly higher than those with benign disease. In NSCLC patients, the relationship between serum CEA concentration and smoking status was also found. A significant relationship between serum CEA concentration and smoking status was also found in patients with adenocarcinoma which is known to have weaker associations with smoking in carcinogenesis. On the other hand, we failed to find the relationship between serum CEA concentration and BMI in NSCLC patients. CONCLUSION: Serum CEA concentration may be affected by smoking status but not BMI in our Japanese patients with thoracic disease.
