Case 4

15 year old boy with left elbow mass for five years that has increased in size over the last few months as well as becoming more painful

Zoom image: Radiological image

Zoom image: Radiological image

Radiological image.

Zoom image: Cell stain

Zoom image: Cell stain

Zoom image: Radiological image

Zoom image: Radiological image

Radiological image.

Zoom image: Cell stain

Zoom image: Cell stain

Zoom image: Radiological image

Zoom image: Radiological image

Radiological image.