Department of Pathology, University of Oklahoma Health Sciences Center

NeuroTest Question #93 Next question Previous question

Answer: (A)  Level of difficulty: 1 NeuroTest NeuroLearn NeuroHelp

• Often seen in neuroblastoma.

• Can be seen in medulloblastoma.

• Homer Wright rosettes.

Discussion: 

• This photo was taken from a medulloblastoma and the structures being shown here (delimited by the arrows) are Homer Wright rosettes. This type of rossette is often seen in neuroblastomas arising from the adrenal glands and other locations. They are also seen in some cases of medulloblastomas.
• Although Homer Wright rosettes can occur in retinoblastoma, Flexner-Wintersteiner rosettes are far more common in retinoblastomas. [Click here to see a case of retinoblastoma]

Comment: KarMing-Fung@ouhsc.edu