Diagnosis of pheochromocytoma in a hemodialysis patient through measurement of plasma catecholamines.

We report the case of a patient on chronic hemodialysis treatment with paroxysms of severe arterial hypertension accompanied by tachycardia, pallor, sweating and tremor. Measurement of plasma catecholamines revealed norepinephrine level of 4625 pg/mL (reference range 191-225 pg/mL), epinephrine level of 1035 pg/mL (58-76 pg/mL) and dopamine level of 148 pg/mL (50-100 pg/mL). MRI showed a left adrenal mass of 2 cm.

Renal cell carcinoma in the allograft: what is the role of polyomavirus?

BK virus (BKV) is known to cause subclinical infection in childhood. The virus remains latent in the human body, mainly in the urinary tract epithelium. After initiation of an immunosuppressive treatment, reactivation can occur in renal transplant recipients.

Prenatal magnetic resonance imaging demonstrates linear growth of the human fetal kidneys during gestation.

Purpose: Although fetal kidneys have only 10% of their postnatal blood flow, fetal renal development is essential for normal postnatal function. In addition, to our knowledge it is unknown whether human fetal kidney development follows a linear or exponential evolution. We created normative magnetic resonance imaging curves for the kidney prenatal growth pattern in relation to gestational age.