Ectomesenchymoma
Ectomesenchymoma
Definition
An aggressive malignant mesenchymal neoplasm of the nervous system or soft tissues. It is characterized by the presence of a sarcomatous component (most often rhabdomyosarcoma) and a ganglionic or a neuroectodermal component.
Also known as ectomesenchymoma, malignant ectomesenchymoma, rhabdomyosarcoma with ganglionic differentiation (morphologic abnormality), sarcoma with ganglionic or neuroectodermal differentiation — per MONDO