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| Code | Diagnosis | Comment | Score |
| anonymous | Malignant Mesothelioma (90%) Metastatic carcinoma (10%) | Immunostain for mesothelial marker (eg. Calretinin) and true epithelial marker (eg. BerEP4 and monoclonal CEA) +/- electron microscopic examination is advised. | 100 |
| anonymous | Malignant tumour (100%), favour mesothelioma. Differential diagnoses are poorly differentiated carcinoma, germ cell tumour. | Immunohistochemical study for confirmation. Mesothelioma is positive for calretinin, negative for BerEP4, MOC-31 and CEA. Germ cell tumour may be positive for AFP, PLAP. | 100 |
| anonymous | Mesothelioma. 90% Adenocarcinoma. 10% | Perform a panel of immuohistochemical stains and EM to reach a conclusive diagnosis. Clinical history of asbestoes exposure relevant. | 95 |
| anonymous | Malignant tumor, favor malignant mesothelioma (90%)Ddx carcinoma (5%), melanoma (5%) | Immunostaining for CK5/6, calretinin (+ in mesothelioma), BerEP4, MOC31 (+ in carcinoma, - in mesothelioma & melanoma) and S100 (+ in melanoma) | 100 |
| anonymous | Malignant mesothelioma with deciduoid features. 100 % | nil | 100 |
| anonymous | Malignant mesothelioma. (100%) | nil | 100 |
| anonymous | Peritoneum nodules - Malignant mesothelioma (100%) | Tumour cells are almost exclusively epithelioid and deciduoid. Immunostains calretinin, CK5/6(+ve) and BerEP4 (-ve) can help to confirm the diagnosis. | 100 |
| anonymous | Malignant mesothelioma, 90% Metastatic adenocarcinoma, 10% | Need to confirm the mesothelial nature by calretinin immunohistochemically or/and electon microscopy to look for the presence of very long microvilli with length/width > 10/1. If negative, try to establish the primary source by cytokeratin profile (CK7 and CK20). | 100 |
| anonymous | Malignant mesothelioma 70% metastatic carcinoma 30% | Suggest immunohistochemical staining for calretinin, Ber-EP4, CEA to confirm the diagnosis. | 100 |
| anonymous | Malignant neoplasm, favor mesothelioma. (100%) | To be confirmed by immunohistochemical and ultrastructural studies. Differential diagnoses include other types of malignant tumors like metastatic carcinoma, sarcoma and melanoma etc. | 95 |
| anonymous | Malignant mesothelioma, epithelial type (100%) | nil | 100 |
| anonymous | Favour mesothelioma. Confirm with calretinin (+ve) and Ber-EP4 (-ve), also exclude hepatoid tumor, e.g. carcinoma of liver, stomach and germ cell tumor. Probability: 100% | nil | 100 |
| anonymous | Favour mesothelioma. Confirm with calretinin (+ve) and Ber-EP4 (-ve), also exclude hepatoid tumor, e.g. carcinoma of liver, stomach and germ cell tumor. Probability: 100% Probability: 100% | nil | 100 |
| anonymous | Malignant tumour (100%); differential diagnoses include mesothelioma (80%), metastatic carcinoma (15%) and metastatic melanoma (5%). | Perform panel of immunostains including: CK5/6, calretinin and HBME-1 for mesothelioma; cytokeratin, CEA, BerEP4 and LeuM1 for carcinoma; and HMB45 for melanoma. Ultrastructural studies for microvilli as in mesothelioma. | 100 |
| anonymous | Deciduoid mesothelioma | panel of mesothelial and carcinoma marker will be performed which incl EMA, CK5/6, thromobomodulin , calretinin for mesothelioma and EP4, AUA1 and CEA for carcinoma. | 100 |
| anonymous | Mesothelioma | nil | 100 |