Bolande tumor

(mesoblastic nephroma)

Rare. It represents 3-4 % of pediatric renal tumors. Considered as a benign kidney tumor occurring, in 90% of cases, before 1 year of age, and in 60 % of cases before 4 months of age. (A few cases have been described in adults). It can be associated to arterial hypertension caused by hyperreninemia (by compression of the renal artery) and hypercalcemia (prostagandines E2 production).

Antenatal diagnosis is possible as early as during the second trimester of pregnancy: ultrasonographic appearance of a heterogeneous mass in the kidney. Prenatal complications are hydramnios or even of fetal hydrops eventually leading to a premature birth.

Treatment is radical nephrectomy.


Anesthetic implications: 

abdominal mass (delayed gastric emptying), arterial hypertension, risk of hemorrhage


References:


Updated: June 2018