Archive for the 'Diagnosis & Differentiation' Category
November 28th, 2009. Biomarkers for malignant pleural mesothelioma: current status
Future research efforts should focus on biomarkers predictive of the efficacy and toxicity of standard chemotherapy. Translational research should be systematically incorporated into the design of clinical trials assessing new targeted agents in MPM.
December 2nd, 2008. Monitoring of Chemotherapy Response in Malignant Pleural Mesothelioma Using Fluorodeoxyglucose Positron Emission Tomography
The tumor lesion exhibited shrinkage on CT and a decrease in the standardized uptake value (SUV) max after the first course of chemotherapy, but exhibited size enlargement and an increase in SUV max after the second course of chemotherapy. These findings suggest that results of quantification of metabolic response by FDG-PET are related to the objective response as determined by CT in patients with MPM.
Posted in CT or CAT scan, Case Study, Chemotherapy, Determining Efficacy, Diagnosis & Differentiation, Full Archive, PET Scan, Pleural, Staging, Treatment, Type of Assessment:, Type of Mesothelioma: | No Comments »
November 27th, 2008. The Role of Podoplanin in Tumor Progression and Metastasis
Based on these data, podoplanin might be considered as an attractive therapeutic target for both LVs and tumor cells. Further studies are necessary to investigate differences in the expression of podoplanin in normal and tumor-associated lymphatics, and between the expression of podoplanin in normal non-LECs and tumor cells.
November 27th, 2008. Clinicopathologic and prognostic significance of overexpression of her-2/neu and p53 oncoproteins in gastric carcinoma using tissue microarray
Conclusion: Although, this study failed to show any prognostic effect of p53 and her-2/neu on survival rates, we may suggest that p53 overexpression may play a role in the pathogenesis of intestinal gastric adenocarcinoma. It could also demonstrate the significantly improved survival rates with adjuvant chemoradiation. Also, TMA is a useful technique for rapid identification of protein expression profiles using minimal samples from archived tissues.
November 26th, 2008. Malignant pleural mesothelioma: biology and diagnosis
Despite sometimes a good sensitivity, other potential markers as osteopontin are of little interest for MPM diagnosis because of a low specificity. In conclusion, the present data do not justify the use of biology for MPM diagnosis in routine yet but rather suggest a need for a continuing evaluation of soluble mesothelin in clinical studies and the search for other potential tumor markers.
November 26th, 2008. Comparison of semiquantitative fluorescence imaging and PET tracer uptake in mesothelioma models as a monitoring system for growth and therapeutic effects
Conclusion: Fluorescence imaging could be used to semiquantitatively monitor tumor size, whereas PET could be used to monitor tumor response to therapeutic treatments, and especially, FLT might be a good marker of the response to anti-folate chemotherapeutics.
November 21st, 2008. Secretion of N-ERC/mesothelin and expression of C-ERC/mesothelin in human pancreatic ductal carcinoma
Although C-ERC/mesothelin was frequently expressed in human pancreatic ductal carcinoma, serum N-ERC/mesothelin concentration of cancer patients was equivalent to healthy controls. N-ERC/mesothelin was not useful as a serum marker of pancreatic ductal carcinoma, but because of frequent expression, C-ERC/mesothelin might be useful as a target of molecular imaging and immunotherapy.
November 15th, 2008. Ectopic decidual reaction mimicking peritoneal tubercles: a report of three cases
Histology revealed extensive decidualisation. To the best of our knowledge, this is the first report of ectopic decidua mimicking peritoneal tubercles.
November 8th, 2008. Transudates in Malignancy: Still a Role for Pleural Fluid
Conclusions: Cytological examination of pleural fluid in patients with unexplained transudative effusion is essential to rule out malignant processes.
November 5th, 2008. Diagnostic and prognostic value of soluble mesothelin-related proteins in patients with malignant pleural mesothelioma in comparison with benign asbestosis and lung cancer
Conclusion: In conclusion, SMRP add limited information to the diagnosis of MPM. Nevertheless, SMRP might be a useful measure in treatment and monitoring of MPM. The prognostic impact of SMRP in MPM is not conclusive and needs further evaluation.
October 31st, 2008. Diffuse malignant pleural mesothelioma: A multi-institutional clinicopathological study
Conclusions: The definitive diagnosis of early MPM is difficult, but establishing the best diagnostic modality would improve survival rates, since radical surgery is likely to be effective for resectable disease.
October 31st, 2008. Semi-rigid thoracoscopy for undiagnosed exudative pleural effusions: a comparative study
Conclusions: Medical thoracoscopy is a simple, safe, and cost-effective tool, with a high positive rate. Physicians should extend its access to proper patients if the facilities for medical thoracoscopy are available.
October 22nd, 2008. A case of non-tuberculous mycobacteriosis with pleurisy with a past history of dense exposure to environmental asbestos
A final diagnosis of NTM was confirmed via open biopsy of the lung. Our case suggests that in addition to tuberculosis, NTM should be taken into consideration as a complication of silicosis.
October 22nd, 2008. A case of solid pseudopapillary tumour of the pancreas and malignant mesothelioma
Discussion: An abdominal computerised tomogram revealed pancreatic body mass arising. Pleural fluid cytology and a pleural biopsy failed to demonstrate malignancy. The pancreatic tumour was resected by distal pancreatectomy, segmental colectomy and splenectomy. The tumour was a solid pseudopapillary pancreatic tumour (SPT) with a high metastatic potential. The patient deteriorated and a repeat biopsy of the thickened pleura confirmed malignancy which was initially thought to be metastases from the SPT. Immunohistochemical staining confirmed malignant mesothelioma. The patient developed liver metastases and died 2 years from the diagnosis of metastatic disease.
Posted in CT or CAT scan, Case Study, Diagnosis & Differentiation, Full Archive, Immunohistochemistry or IHC, Pleural Effusion, Surgery, Survival, Symptoms & Symptom Management, Treatment, Type of Assessment: | No Comments »
October 16th, 2008. Histologic assessment and prognostic factors of malignant pleural mesothelioma treated with extrapleural pneumonectomy
Postoperative treatment was associated with DSS and with recurrence-free survival. Our study confirms that in many cases, final histopathologic typing of MPM is influenced by complete surgical resection and that initial biopsy should be carefully weighed in the treatment stratification.
October 16th, 2008. A useful antibody panel for differential diagnosis between peritoneal mesothelioma and ovarian serous carcinoma in Japanese cases
The results identified calretinin and thrombomodulin as positive markers and Ber-EP4, MOC-31, CA19-9, and estrogen receptor as negative markers with relatively high sensitivity and specificity for the differential diagnosis of PM and SC. The combination of these positive and negative markers may contribute to accurate diagnosis and adequate therapy for PM and ovarian SC.
October 11th, 2008. Pulmonary epithelioid hemangioendothelioma mimicking mesothelioma
Mesothelioma markers were universally negative and cytokeratin was focally reactive only in some epithelioid cells. Epithelioid hemangioendothelioma is a rare tumor in the lung that can mimic other more common pathological entities, and should be included in the differential diagnosis of unusual pulmonary neoplasms with epithelioid or biphasic morphology.
October 7th, 2008. CK5/6 in effusions: no difference between mesothelioma and pulmonary and nonpulmonary adenocarcinoma
Conclusion: CK5/6 reactivity was found in a considerable proportion of metastatic adenocarcinomas of pulmonary and nonpulmonary origin. The high reactivity rate in pulmonary adenocarcinomas disagrees with the results obtained with histologic sections from solid tumor tissue, and CK5/6 seems to be of very limited value as an additional marker in effusion cytology.
October 7th, 2008. Functional inactivation of NF2/merlin in human mesothelioma
Our results support the hypothesis that the disruption of NF2 signalling is essential for the development of human mesothelioma. In tumors where no NF2 truncation can be detected, NF2 is rendered inactive by phosphorylation of Ser 518 and this can be explained at least in part by an increased expression of CPI-17.
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