Actually is VACTERL:
V -
Vertebral anomalies
A -
Anal atresia
C -
Cardiovascular anomalies
T -
Tracheoesophageal fistula
E -
Esophageal atresia
R -
Renal +/-
Radial anomalies
L -
Limb defects
As you can see, R stands both for renal and for radial anomalies.
