obsolete_Sarcomatoid Mesothelioma true spindled mesothelioma 3.88.0 malignant fibrous mesothelioma sarcomatoid mesothelioma (morphologic abnormality) Replaced by Mondo term MONDO_0006407, with which this term was previously merged. Use: http://purl.obolibrary.org/obo/MONDO_0006407 EFO:1000521 NCIT:C45655 malignant fibrous mesothelioma (morphologic abnormality) DOID:4488 A diffuse malignant mesothelioma arising from the pleura and less often the peritoneum. It is characterized by the presence of spindle cells. Anaplastic morphologic features and multinucleated malignant cells may also be seen. sarcomatoid mesothelioma UMLS:C0334513 http://purl.obolibrary.org/obo/MONDO_0006407