Archive for September, 2008
September 30th, 2008. Acrylamide Carcinogenicity
The mode of action remains unclear for acrylamide-induced rodent carcinogenicity, but support for a genotoxic mechanism based on in vitro and in vivo DNA reactivity assays cannot be ruled out. In addition, the pattern of tumor formation in the rat following chronic exposure supports a genotoxic mode of action but also suggests a potential role of endocrine modification.
September 30th, 2008. Mesothelial reaction in longstanding Crohn’s ileitis simulating papillary mesothelioma
The peritoneal surface of the ileal resection specimen displayed exuberant tubulo-papillary formations of the mesothelium, with superficial invasion of the underlying stroma. The case demonstrates the well-recognised difficult differential diagnosis between a benign mesothelial proliferation and malignant mesothelioma in a novel clinical setting, and the diversity of the extramural manifestations of Crohn's disease.
September 27th, 2008. Treatment of peritoneal mesothelioma in pediatric patients
Treatment was well tolerated, and three of these patients have achieved long-term survival. The fathers of three of the patients worked in the construction industry and may have been the source of indirect asbestos exposure.
Posted in Case Study, Causation, Cisplatin (Platinol ®), Determining Efficacy, Full Archive, Occupational Asbestos Exposure, Peritoneal (Abdominal Mesothelioma), Survival, Treatment, Type of Assessment:, Type of Mesothelioma: | 2 Comments »
September 24th, 2008. The relationship between malignant mesothelioma and an asbestos cement plant environmental risk: a spatial case–control study in the city of Bari (Italy)
Conclusion: Evidence of an association between mesothelioma risk and EAE is highlighted. The role played by the RMR in increasing the public health local authorities awareness is stressed. Keywords Asbestos-cement plant - Environmental-neighborhood exposure - Mesothelioma register - Spatial case–control study - Public health - Italy
September 23rd, 2008. Pleural fluid findings as prognostic factors for malignant pleural mesothelioma
However, none of these variables emerged as statistically significant from the multivariate Cox model. In conclusion, our results showed that there is an inverse correlation between the intensity of inflammation and survival.
September 23rd, 2008. The impact of lymph node station on survival in 348 patients with surgically resected malignant pleural mesothelioma: implications for revision of the American Joint Committee on Cancer staging system
Conclusion: This study confirms a preferential pattern of drainage of malignant pleural mesothelioma to N2 rather than N1 lymph nodes, but suggests that N1 only nodal involvement should be classified as lower stage disease. Multiple N2 nodal site involvement could potentially be classified as higher stage disease than single station N2. Our results emphasize the need for larger, confirmatory multicenter studies that could lead to revision of the current staging system.
Posted in Diagnosis & Differentiation, Extrapleural Pneumonectomy (EPP), Full Archive, Pleural, Pleurectomy/decortication, Staging, Surgery, Survival, Treatment, Type of Assessment:, Type of Mesothelioma: | No Comments »
September 23rd, 2008. Predicted mortality from malignant mesothelioma among women exposed to blue asbestos at Wittenoom, Western Australia
Conclusion: The high toll from mesothelioma in this cohort of women and girls will continue well into the future.
September 19th, 2008. Comparative immunohistochemistry of L19 and F16 in non-small cell lung cancer and mesothelioma: Two human antibodies investigated in clinical trials in patients with cancer
In our analysis, the anti-tenascin F16 antibody was found to generally exhibit a stronger staining of desmoplastic stroma surrounding tumor. This superior performance was found to be particularly striking in the case of low-grade non-small cell lung cancer.
September 19th, 2008. Preoperative staging of mesothelioma by 18F-fluoro-2-deoxy-D-glucose positron emission tomography/computed tomography fused imaging and mediastinoscopy compared to pathological findings after extrapleural pneumonectomy
Conclusions: Non-curative surgery is avoided in 29% out of 42 MPM patients by preoperative PET/CT and in further 14% by mediastinoscopy. Even though both procedures are valuable, there are false negative findings with both, urging for even more accurate staging procedures.
September 18th, 2008. Multicystic peritoneal mesothelioma is an uncommon lesion that is most often discovered incidentally
Abstract Symptoms are unusual. The lesion is benign with a favourable prognosis but local recurrence is reported not to be rare, and in a few cases malignant transformation has been described.
September 17th, 2008. Orally Ingested Chrysotile Asbestos Affects Rat Lungs and Pleura
The authors observed mesothelial proliferation in all group B rats at the end of 12 months. Ingested asbestos traveled from the gastrointestinal system to the lungs, likely via a lymphohematological route, leading to mesothelial proliferation, which may lead to malignancies.
September 17th, 2008. Peritoneal Mesotheliomas: Clinicopathologic Features, CT Findings, and Differential Diagnosis
Conclusion: The clinicopathologic features of peritoneal mesotheliomas vary among the subtypes such as malignant mesotheliomas, cystic mesotheliomas, and well-differentiated papillary mesotheliomas, and accordingly, there is a spectrum of CT appearances.
September 17th, 2008. ‘Hands of Time’: the experience of establishing a support group for people affected by mesothelioma
The structure and process of developing and running the group are described and the challenges involved are discussed. The findings of a small evaluation of the group are presented.
September 17th, 2008. Metastasis of Malignant Peritoneal Epithelioid Mesothelioma in Endoscopic Gastric Biopsy: A Diagnostic Pitfall
Conclusions: Metastases of malignant peritoneal mesotheliomas are unusual, and a predominantly gastrointestinal localization is rare. Pathologists should be aware of this possibility to avoid misdiagnosis, particularly in small biopsy specimens.
September 17th, 2008. Proteasome Inhibitor MG132 Induces Apoptosis and Inhibits Invasion of Human Malignant Pleural Mesothelioma Cells
Meanwhile, subapoptotic doses of MG132 inhibited the invasion of both MPM cell lines through reducing Rac1 activity. These observations demonstrate that MG132 possesses proapoptotic and anti-invasion activities in human MPM cells, therefore encouraging further investigations on the value of PIs for treating MPM.
September 17th, 2008. Raw single-wall carbon nanotubes induce oxidative stress and activate MAPKs, AP-1, NF-kappaB, and Akt in normal and malignant human mesothelial cells
Conclusions: The cellular and molecular findings reported here do suggest that SWCNTs can cause potentially adverse cellular responses in mesothelial cells through activation of molecular signaling associated with oxidative stress, which is of sufficient significance to warrant in vivo animal exposure studies.
September 16th, 2008. Survival of pleural malignant mesothelioma in Italy: a population-based study
Age and morphology were the main prognostic factors. Results regarding the effect of treatment were disappointing but may be useful to assess the future impact, at the population level, of recently introduced therapies.
September 16th, 2008. Survival of peritoneal malignant mesothelioma in Italy: a population-based study
Treatment was not associated with a statistically significant improvement in survival, but our study included cases first diagnosed before the introduction of the most recent therapeutic approaches. This provides a large historical comparison for future studies on survival trends at the population level.
September 13th, 2008. Pathology of Primary Tumours of the Pleura
Besides other rare primary tumours of the pleura, the differential diagnoses of malignant mesotheliomas comprise carcinomatous pleuritis of intra- and extrapulmonary malignancies. Especially in early tumour stages, the differentiation from reactive pleural changes requires a close interdisciplinary cooperation with a careful correlation between histopathological findings and clinical presentation.
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