Archive for the 'Biphasic or Mixed' Category
Combination of epithilioid and sarcomatoid mesothelioma types. Approximately 20-35% of cases are classified as mixed or biphasic mesothelioma.
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.
August 1st, 2008. Establishment of a human malignant fibrous mesothelioma cell line and the biological characteristics compared with malignant epithelial mesothelioma cell line
1, among others may be a major mechanism of malignant mesothelioma carcinogenesis. We considered and supported the combination theory for the histogenesis of malignant mesothelioma.
July 1st, 2008. Morbidity, mortality, mean survival, and the impact of histology on survival after pleurectomy in 64 patients with malignant pleural mesothelioma
Conclusion: Our results show that pleurectomy can be performed as a means of palliation for advanced-stage disease with a low mortality rate and may, in fact, improve survival in patients with epithelial subtype as compared with historical controls in the literature with no surgical intervention.
Posted in Biphasic or Mixed, Determining Efficacy, Epithelioid, Extrapleural Pneumonectomy (EPP), Full Archive, Pleural, Sarcomatoid, Surgery, Survival, Treatment, Type of Assessment:, Type of Mesothelioma: | No Comments »
July 1st, 2008. Malignant mesothelioma with heterologous elements: clinicopathological correlation of 27 cases and literature review
Immunohistochemical labelling for cytokeratins is helpful in the distinction, but lack of labelling for cytokeratins in a spindle cell/sarcomatoid tumour does not exclude the diagnosis of mesothelioma, irrespective of the presence of heterologous elements. We suggest that if the anatomical distribution conforms to that of mesothelioma, a diagnosis of heterologous mesothelioma should be made in preference to a diagnosis of primary pleural osteosarcoma or chondrosarcoma, regardless of cytokeratin positivity, as for conventional non-heterologous sarcomatoid mesothelioma.
Posted in Biphasic or Mixed, Causation, Diagnosis & Differentiation, Epithelioid, Full Archive, General, Immunohistochemistry or IHC, Peritoneal (Abdominal Mesothelioma), Pleural, Sarcomatoid, Survival, Type of Assessment:, Type of Mesothelioma: | No Comments »
May 23rd, 2008. Primary peritoneal mesotheliomas in children: a clinicopathological and immunohistochemical study of eight cases
Conclusions: Peritoneal malignant mesothelioma in children is a rare condition that can introduce difficulties in histopathological diagnosis.
Posted in Biphasic or Mixed, Case Study, Chemotherapy, Diagnosis & Differentiation, Epithelioid, Full Archive, Immunohistochemistry or IHC, Peritoneal (Abdominal Mesothelioma), Sarcomatoid, Survival, Treatment, Type of Assessment:, Type of Mesothelioma: | No Comments »
April 30th, 2008. The value of occult disease in resection margin and lymph node after extrapleural pneumonectomy for malignant mesothelioma
Conclusions: In malignant pleural mesothelioma, the presence of occult disease in resection margins and lymph nodes can be identified by immunohistochemistry and significantly influences the prognosis. Cervical mediastinoscopy is useful in all patients considered for radical resection, but all specimens should be processed with immunohistochemical staining.
Posted in Biphasic or Mixed, Determining Efficacy, Diagnosis & Differentiation, Epithelioid, Extrapleural Pneumonectomy (EPP), Full Archive, Immunohistochemistry or IHC, Pleural, Sarcomatoid, Staging, Surgery, Survival, Treatment, Type of Assessment:, Type of Mesothelioma: | No Comments »
April 15th, 2008. A case of omental mesothelioma presenting with laminar thickening of omentum-appearances of diffuse malignant peritoneal mesothelioma
In addition, Gascintigraphy and FDG-PET are useful auxiliary diagnostic tools. In the future, we hope to differentiate epithelial, sarcomatous and biphasic types based on imaging findings.
April 4th, 2008. Establishment of three novel human malignant pleural mesothelioma cell lines: morphological and cytogenetical studies and EGFR mutation status
Conclusion: FACS analysis is more sensitive for evaluating mesothelin expression than immunohistochemistry of cut specimens. Irrespective of the expression of EGFR on FACS analysis, no EGFR mutation was detected. These three cell lines may be useful for studying cellular, molecular and genetic aspects of mesothelioma.
March 25th, 2008. Malignant pleural mesothelioma: Computed tomography and correlation with histology
Conclusions: Ipsilateral volume loss is most frequently associated with sarcomatous or mixed mesothelioma. The remaining imaging findings are not helpful in predicting the histological subtype of malignant mesothelioma.
Posted in Biphasic or Mixed, CT or CAT scan, Diagnosis & Differentiation, Epithelioid, Full Archive, Pleural, Pleural Effusion, Sarcomatoid, Symptoms & Symptom Management, Type of Assessment:, Type of Mesothelioma: | No Comments »
February 29th, 2008. Local recurrence of tumor at sites of intervention in malignant pleural mesothelioma
LD was not associated with the stage of the disease. The most suitable candidate groups for PR are patients receiving supportive therapy, thoracotomy without multi-modal therapy or patients with sarcomatous and mixed cell type tumors.
Posted in Biphasic or Mixed, Chemotherapy, Determining Efficacy, Full Archive, Pleural, Radiation, Sarcomatoid, Surgery, Survival, Treatment, Tumor Debulking, Type of Assessment:, Type of Mesothelioma: | No Comments »
February 19th, 2008. Malignant pleural mesothelioma: multidisciplinary experience in a public tertiary hospital
Conclusions: In the cases studied, an integrated multidisciplinary approach was used, and a highly complex hospital infrastructure was available for the diagnosis and treatment of MPM, as recommended in the literature. However, the mean survival was only 11 months, reflecting the aggressiveness of the disease.
Posted in Biphasic or Mixed, Chemotherapy, Diagnosis & Differentiation, Epithelioid, Full Archive, General, Pleural, Pleural Biopsy, Pneumonectomy, Radiation, Sarcomatoid, Surgery, Treatment, Trimodality Therapy, Type of Assessment:, Type of Mesothelioma:, thoracoscopy | No Comments »
February 11th, 2008. Expression of mesothelin as a potential diagnostic marker in mesothelioma
None of the sarcomatoid mesotheliomas exhibited positivity for this marker, nor was any reactivity seen in the spindle cell component of the biphasic mesotheliomas. These findings indicate that, in some instances, mesothelin immunostaining can assist in the diagnosis of mesothelioma.
January 30th, 2008. No detection of SV40 DNA in mesothelioma tissues from a high incidence area in Sweden
Eighteen tumors were amplifiable, but none contained SV40 DNA. The results do not support an association between mesothelioma and SV40.
December 29th, 2007. Podoplanin is a Better Immunohistochemical Marker for Sarcomatoid Mesothelioma Than Calretinin
Overall sensitivities and pecificities were 84% and 99% for antipodoplanin, and 86% and 96% for D2-40. These findings suggest that cytoplasmic podoplanin expression may be useful in the diagnosis of sarcomatoid mesothelioma, although it should be used with caution on biopsy material.
December 25th, 2007. Localised malignant pleural mesothelioma: a separate clinical entity requiring aggressive local surgery
Conclusion: Our results suggest that surgery is indicated in treating localised MPM even in T4 (diffuse chest wall involvement) tumours but pleuropneumonectomy is not necessary. These tumours seem to have a different biological behaviour compared to diffuse MPM but further research, including identification of possibly different biological markers is necessary.
Posted in Biphasic or Mixed, Epithelioid, Full Archive, Pleural, Pleurectomy/decortication, Pneumonectomy, Sarcomatoid, Surgery, Survival, Treatment, Tumor Debulking, Type of Assessment:, Type of Mesothelioma: | No Comments »
November 3rd, 2007. Novel expression of kallikreins, kallikrein-related peptidases and kinin receptors in human pleural mesothelioma
KRP/hK2, 6, 8 and 9 were also expressed in the cytoplasm and nuclei of mesothelioma cells, whereas KRP/hK5 and hK7 showed predominantly cytoplasmic localisation. This is a first report, but further studies are required to determine whether these proteins have a functional role in the pathogenesis of mesothelioma and/or may be potential biomarkers for pleural mesothelioma.
Posted in Biphasic or Mixed, Diagnosis & Differentiation, Epithelioid, Full Archive, New & Novel, Pleural, Sarcomatoid, Serum Marker/Blood Test, Treatment, Type of Assessment:, Type of Mesothelioma: | No Comments »
October 24th, 2007. Localized malignant pleural mesothelioma treated by a curative intent lobectomy: a case report
His postoperative course was uneventful, and he has been doing well for almost 1 year. A resection of the tumor has shown to increase survival in previous reports, though the role of oncologically justifiable resection, such as a lobectomy, and the biological behavior of such tumors are still difficult to predict.
Posted in Biphasic or Mixed, CT or CAT scan, Case Study, Diagnosis & Differentiation, Full Archive, Pleural, Pleural Biopsy, Surgery, Survival, Type of Assessment:, Type of Mesothelioma: | No Comments »
September 22nd, 2007. Accuracy of pleural biopsy using thoracoscopy for the diagnosis of histologic subtype in patients with malignant pleural mesothelioma
Conclusions: Pleural biopsy performed using thoracoscopy is considered to be the cornerstone of the diagnosis and pleural staging of MPM. However, this procedure appears to be less efficient in diagnosing the histologic subtype as either epithelial or biphasic.
August 25th, 2007. Localized Malignant Mesothelioma of the Pleura
Immunohistochemical findings confirmed the mesothelial feature. Localized malignant mesothelioma should be distinguished from diffuse malignant mesothelioma because of its different biological behavior, and in the former complete resection it is associated with a good prognosis.
Posted in Biphasic or Mixed, CT or CAT scan, Causation, Diagnosis & Differentiation, Full Archive, Immunohistochemistry or IHC, Occupational Asbestos Exposure, Pleural, Surgery, Type of Assessment:, Type of Mesothelioma: | No Comments »
August 7th, 2007. Influence of Radiotherapy Technique and Dose on Patterns of Failure for Mesothelioma Patients After Extrapleural Pneumonectomy
Conclusions: High-dose hemithoracic RT appears to limit in-field LF compared with MDRT. However, DF remains a significant challenge, with one-half of our patients experiencing DF.
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