Optimization of response classification criteria for patients with malignant pleural mesothelioma, a validation study

Image-based response assessment is often used as a surrogate for the efficacy of a treatment in patients. The radiological response assessment in patients with malignant pleural mesothelioma (MPM) is notoriously difficult, despite changes in the scoring system, modified Response Evaluation Criteria in Solid Tumors (modified RECIST). The current clinical method for tumor response assessment in mesothelioma is the modified RECIST guideline, which calls for two linear measurements of tumor thickness to be summed from each of three axial sections, primarily in computed tomography (CT) scans.
Source: Lung Cancer - Category: Cancer & Oncology Authors: Source Type: research

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Rationale: Small cell carcinoma (SCC) occurs mostly in the lung, and small cell lung cancer accounts for 13% of newly diagnosed lung cancers. Only 2.5% of SCC occurs in extrapulmonary sites, and SCC of pleural origin is especially very uncommon. Patient concerns: An 85-year-old man presenting with progressive dyspnea for more than 7 days. Diagnoses: Computed tomography scan of the chest showed massive pleural effusion and diffuse nodular thickening of the pleura on the right chest. Sonography-guided needle biopsy of the pleural mass was performed and histologic and immunohistochemical findings revealed SCC. Since n...
Source: Medicine - Category: Internal Medicine Tags: Research Article: Clinical Case Report Source Type: research
Conclusions: 3D semiautomatic quantification of PPV is feasible and reproducible using CT in patients with occupational exposure to asbestos. PPV measurement may be useful to correlate with other asbestos-related disease outcomes and prognosis.
Source: Journal of Thoracic Imaging - Category: Radiology Tags: Original Articles Source Type: research
Specially trained beagles could one day detect mesothelioma by scent, according to the lead researcher of a recent study detailing the dog breed’s stunning accuracy with lung cancer. Dr. Thomas Quinn, clinical professor at the Lake Erie College of Osteopathic Medicine, believes the dogs could be equally effective with pleural mesothelioma, a rare cancer caused by asbestos exposure. “Absolutely, this could work with mesothelioma. There is no reason why it wouldn’t,” Quinn told The Mesothelioma Center at Asbestos.com. “That is another cancer with strong potential for this to work well.” Th...
Source: Asbestos and Mesothelioma News - Category: Environmental Health Authors: Source Type: news
1332Objectives: To investigate the value of 18F-FDG PET/CT imaging in differentiating malignant from benign exudative pleural effusions. Methods: 224 patients with CT scan and pleural effusion puncture examination evidence of moderate or massive exudative pleural effusions entered the study to evaluate the accuracy of 18F-FDG PET/CT in differential diagnosis between malignant and benign exudative pleural effusions. Image analysis of PET/CT was performed both with visual interpretation and using a quantitative method on coronal, sagittal and axial reconstructions. The results of PET/CT imaging were compared to cyto- or hist...
Source: Journal of Nuclear Medicine - Category: Nuclear Medicine Authors: Tags: Lung Cancer Posters Source Type: research
Researchers at Osaka University in Japan have identified a key component of physical health associated with response to immunotherapy drugs. Among people with non-small cell lung cancer, higher levels of muscle mass predicted a better response to PD-1 inhibitor immunotherapy. Sarcopenia — the term used to describe low muscle mass levels — appears to reduce the benefits a person receives from immunotherapy cancer treatment. “Sarcopenia at baseline is a significant predictor of worse outcome in patients with advanced NSCLC [non-small cell lung cancer] receiving PD-1 blockade,” the study investigators ...
Source: Asbestos and Mesothelioma News - Category: Environmental Health Authors: Source Type: news
Doctors in China may have uncovered an effective second- or third-line treatment option for patients with malignant pleural mesothelioma. Dr. RongQin Meng, an oncologist at 363 Hospital in Cheng Du, said the investigational drug Apatinib (rivoceranib) could become part of a much-needed advance in mesothelioma treatment. After first- and second-line chemotherapy combinations had failed to slow tumor growth in a 58-year-old woman, Apatinib provided a five-month progression-free survival. “I was surprised at the result,” Meng told The Mesothelioma Center at Asbestos.com. “After taking the drug, the quality o...
Source: Asbestos and Mesothelioma News - Category: Environmental Health Authors: Source Type: news
Radiation oncologist Dr. Andrea McKee believes deaths from lung cancer — including those related to asbestos exposure — could be reduced significantly by increased utilization of early CT screening. McKee, chair of radiation oncology at Lahey Hospital and Medical Center in Burlington, Maine, has been a strong proponent of early screening for several years. “We could be saving tens of thousands of lives every year with this,” McKee told The Mesothelioma Center at Asbestos.com. “There is nothing else like it. The life-saving potential is the most important thing that has happened to cancer in my...
Source: Asbestos and Mesothelioma News - Category: Environmental Health Authors: Source Type: news
Physicians may soon use artificial intelligence (AI) and medical images to study tumors without a biopsy. The techniques developed to study tumors in this new way are described in the September 1 issue of The Lancet Oncology. Along with helping physicians learn more about tumors without surgery, the new approach should help identify which cancer patients will respond best to cutting-edge immunotherapy treatments. The AI techniques could be useful for “predicting clinical outcomes of patients treated with immunotherapy when validated by further prospective randomized trials,” the authors wrote. Immunotherapy tre...
Source: Asbestos and Mesothelioma News - Category: Environmental Health Authors: Source Type: news
A University of Michigan and Veterans Affairs research team has developed a novel, personalized lung cancer screening tool that accounts for past asbestos exposure. Asbestos exposure is best known as the primary cause of mesothelioma, but it also significantly increases the chance of developing lung cancer. Adding asbestos to the lung-cancer screening tool also should help identify mesothelioma in its earliest stages, when it is most treatable. Mesothelioma is not usually diagnosed until it has progressed into stage 3 or stage 4, when treatment is more palliative than potentially curative. The tool is designed to better i...
Source: Asbestos and Mesothelioma News - Category: Environmental Health Authors: Source Type: news
CONCLUSION: Inter-observer delineation variability has a relevant influence on radiomics analysis and is strongly influenced by tumor type. This leads to a reduced number of suitable imaging features. PMID: 29513054 [PubMed - as supplied by publisher]
Source: Acta Oncologica - Category: Cancer & Oncology Authors: Tags: Acta Oncol Source Type: research
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