The structures being shown here are:

1. Often seen in neuroblastoma.

2. Can be seen in medulloblastoma.

3. Homer Wright rosettes.

4. Flexner-Wintersteiner rosettes.

A. I, 2, and 3 are true.

B. Only 1 and 3 are true.

C. Only 2 and 4 are true.

D. Only 4 is true.

E. None of the above.

Answer and Discussion

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