Doctors here used an advanced robotic surgery to treat a 70-year-old man with a renal tumour. Doctors at the Apollo Cancer Centres (ACC), Kolkata, diagnosed the patient, Dulal Dutta, with a malignant tumour affecting the largest vein in the body and his right kidney.  

The 3 cm tumour thrombus spread from the Inferior Vena Cava - IVC (the largest vein in the body) and spread to the right kidney measuring 6cm x 5.5cm x 5cm.