1. Obsolete term for a tumefaction resulting from abnormal proliferation of Schwann cells, in which focal or diffuse degenerative changes result in portions that resemble primitive mesenchymal tissue.
2. Obsolete term for a neurilemoma, meningioma, or glioma in which the stroma is myxomatous in nature.
[myxo- + G. neuron, nerve, + -ōma, tumor]
myxoneuroma(mĭks″ō-nū-rō′mă) [″ + neuron, nerve, + oma, tumor]
Tumor made of mucous membrane and nerve.