Pleomorphic Variant Mantle Cell Lymphoma

An aggressive malignant mesenchymal neoplasm with skeletal muscle differentiation, occurring in adults and rarely in children. The tumor is characterized by…

A liposarcoma with areas of pleomorphism, resembling malignant fibrous histiocytoma. It is the rarest liposarcoma variant and usually has an aggressive…

A benign circumscribed tumor characterized by small spindle cells, rounded hyperchromatic cells and multinucleated giant cells with radially arranged nuclei.

A non-metastasizing soft tissue neoplasm characterized by the presence of a neoplastic stroma containing spindle cells, dilated thin-walled vessels lined by fibrin,…

A morphologic variant of hepatocellular carcinoma, characterized by the presence of malignant cells which show marked variation in their size and…

A usually aggressive malignant epithelial neoplasm composed of cells with significant cytologic atypia and nuclear pleomorphism.