Patient history: 2 1/2 year-old boy with hematuria and abdominal pain. A large tumor is found in the right kidney. Fine-needle aspiration cytology from tumor tissue shows malignant cells. The right kidneyand tumor was removed.

This is an overview of the neoplastic tissue together with the adjacent kidney.

Question: Can you tell what tissue is the tumor and what tissue is kidney?

- se names on image. Now hit the magnifier and tak e look at the tissues up close.