A 64-year-old woman visited her family doctor, complaining of headaches,

sweating and heart palpitations. Furthermore, she mentioned that she

experienced generalized weakness which she thought was due to weight loss.

After repetitive measurements of the patient’s blood pressure the doctor

diagnosed hypertension and asked for a CT of her abdomen. The results of the

latter showed a mass located adjacent to the upper pole of the right kidney.

Which tumour would be the most likely cause for the symptomatology

described above?