Fig. 3
From: A case of appendiceal ganglioneuroma in neurofibromatosis type 1
A Short spindle-shaped cells (neuron component: arrow heads) and round-shaped cell (ganglion cell: arrows) diffusely infiltrated the proper muscle layer, and fibrous tissue had grown around the nerve cells. B, C According to immunostaining, ganglion cells were positive for both S-100 C and synaptophysin (B), and neurons were positive for S-100 only