False/Negative Rate of Lung Percutaneous Needle Biopsy
Lung NeoplasmNeedle biopsy is a way of determining whether a lung mass is cancerous or benign. Its accuracy was established by research in which patients underwent fine needle aspiration, a kind of needle biopsy that yields samples for cytology (similar to the way a pap smear or a fluid sample would be evaluated for malignant cells). This kind of needle biopsy may supplemented or replaced by core needle biopsy, which yields samples for histology (similar to surgical tissue samples but on a smaller scale) rather than for cytology. Core needle biopsy is believed to be helpful particularly in obtaining a diagnosis in patients who have a lung mass that their doctors think is cancerous but is, in fact, benign. In spite of the advances in needle biopsy, however, there are patients who do receive a pathology report indicating no evidence of cancer but whose lung mass actually is cancerous. The fraction of such patients, among all patients who have no evidence of cancer according to the biopsy, is called the "false negative rate." It is approximately 25% for needle biopsies that consist of fine needle aspiration alone. The false negative rate for needle biopsies that include core biopsy samples is not known. We want to examine the accuracy of needle biopsy in patients who had core samples taken from a lung mass in addition to, or in place of, fine needle aspiration. In this study we will focus on such patients who had no evidence of cancer according to the biopsy, to determine how many actually had a cancer that was missed by the biopsy. To accomplish this goal, we will need to review the medical records of these patients for one of two things: either a definitive diagnosis of the lung mass by some other means (for example, surgical biopsy), or by seeing how the patient does over a period of time (usually in conjunction with medical imaging tests such as chest x-rays or chest CT scans). To establish that a lung mass is benign by observing a patient over time, it is necessary to show that the lung mass disappears, becomes smaller, or remains unchanged in size for 2 years.
Survey and Blood Sample Collection for Patients With Lung Cancer Who Never Smoked Cigarettes
Lung CancerThe purpose of this study is to determine if collecting information and blood from a group of people who never smoked but who have lung cancer, is possible across the US. The investigators will collect information on each patient's diagnosis and treatments. If the collection is successful, blood samples will be used to try to identify new genes (which are the basic elements of heredity, passed from parents to their offspring), which may explain and predict why certain patients develop lung cancer without having smoked tobacco.
Retrospective Study Evaluating IGF1R And p95HER2 as Prognostic Factors in Non Small Cell Lung Cancer...
Non Small Cell Lung CancerAim of the study is to evaluated the role of IGF1R and p95HER2 on prognosis in radically resected non small cell lung cancer patients The primary objective is to correlate the expression of IGF1R and p95HER2 with survival.
4D PET/CT in Diagnosing Participants With Lung and Colorectal Cancer With Liver and Lung Metastasis...
Metastatic Malignant Neoplasm in the LiverMetastatic Malignant Neoplasm in the Lung7 moreThis trial studies how well 4 dimensional (D) positron emission tomography/computed tomography (PET/CT) works in diagnosing participants with lung or colorectal cancer that has spread to the liver and lung. Diagnostic procedures, such as PET/CT, may help find and diagnose disease and find out how far the disease has spread. But the motions made by breathing can reduce the image quality of the scan. Adjusting the scanner to 4D may allow for more breathing motion may improve the quality of the PET/CT images.
Performance Status During Treatment With Pemetrexed in Patients With NSCLC
Non Small Cell Lung CancerThe primary research objective of this observational study in pretreated patients with NSCLC of Stage IIIa/b or Stage IV is to evaluate patients' Karnofsky Index (KI) after the second cycle of second-line treatment with single agent pemetrexed in a real life setting, and to evaluate factors potentially influencing performance status in terms of KI, i.e. frequency of use of concomitant medications, in particular analgesics, folic acid, Vitamin B12, antiemetics, and medications against diarrhea; as documented in patient diary (days of use per week) and by the physicians.
Identification of Circulating Tumor Cells in the Peripheral Blood of Lung Cancer Patients
Lung CancerThe primary aim of this study is to determine whether we can identify human lung cancer tumor cells in the peripheral blood of lung cancer patients.
Elderly Independent Patients With Non Small Cell Lung Cancer (NSCLC)
Non Small Cell Lung CancerThe purpose of this study is to determine duration before progression of first-line treatment chemotherapy following erlotinib in second-line comparing erlotinib in first-line following chemotherapy in second-line in old patients with none small cell lung cancer.
Retrospective Epidemiological Study of Lung Cancer With Low-dose Multislice Computed Tomography...
Lung CancerLung cancer is one of the leading causes of cancer-related death in Taiwan. Early diagnosis of lung cancer may improve cancer survival. Low-dose computed tomography (LDCT) was thought to be the best screening tool for lung cancer. However, there is growing concerns about radiation exposure, high cost, and high rate of false-positive screening result. Epidemiology data for LDCT screening in Taiwan is lacking. National Taiwan University Hospital Chu-Tung Branch (NTUHCT) initiated the lung cancer screening by LDCT since June 2015. Many people can get the LDCT screening with affordable price with the subsidy from enterprise donation. The purpose of this study is establishing local epidemiological result via telephone follow-up and patients' medical records retrospectively.
An epidemiOlogy Study to deteRmine the Prevalence of EGFR (Epidermal Growth Factor Receptor) muTations...
Non-Small Cell Lung CancerThis is a multicentre, non-interventional, prospective study to be carried out in representative oncology departments / institutions in order to determine the prevalence of EGFR mutations in treatment-naive Russian patients with cytologically verified advanced NSCLC in Russia.
Empyema Following Pneumonectomy for Non Small Cell Lung Cancer (NSCLC)
Non Small Cell Lung CancerLung CancerEmpyema following pneumonectomy for Non Small Cell Lung Cancer (NSCLC) is a known problem that occurs in about 2% of pneumonectomy patients.