Fig. 3
![Fig. 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40792-018-0529-x/MediaObjects/40792_2018_529_Fig3_HTML.png)
Microscopic findings. Microscopically, two types of atypical cells with enlarged heterozygous nuclei are observed in a part of the cyst wall. a–c Neuroblastic cells immunohistochemically positive for neuron-specific enolase [a hematoxylin/eosin (HE), × 100 magnification; b HE, × 400 magnification; and c neuron-specific enolase, × 400 magnification]. d–f Cells morphologically similar to ganglion cells and immunohistochemically positive for S-100 (d HE, × 100 magnification; e HE, × 400 magnification; and (f) S-100, × 400 magnification)