The shapes of neuronal cell bodies are spherical, ovoid , pyramial, fusiform, stellate or crescentic.

神经体的形状有圆形，卵圆形，锥形，梭形，星形或半月形。

SMA staining was positive in basophilous small blocks, spindle or irregular cell cluster.Of the 218 cases, 56 cases had smooth muscle.

平滑肌肌动蛋白染色显示嗜碱性的小状、梭形或不规则形的束呈阳性反应，证为平滑肌，218例中56例显示了平滑肌的存在。