Nodes or masses on renal glands, could they be cancer?

Depends on size: There are many types of kidney masses, ranging from cysts to adenomas to fibromas and occasionally a malignancy. . The majority of small kidney growths are benign, while larger ones are more likely to be cancerous. Most masses are diagnosed incidentally. If treatment is required, options, include watching and waiting, medication, and surgery. Many masses are discovered incidentally through an X-ray, (CT) scan, (MRI) study, or an ultrasound being done for another procedure A mass of about 1.5 in (4 cm) or less is only about 20 to 30% likely to be cancerous, while those larger than 2.75 in (7 cm) are about 90% likely to be cancerous. A doctor may also take a biopsy of the mass. Renal adenoma is the most common type of benign kidney mass, and is seen as a small growth.. Sometimes they are classified as precancerous, and they are closely monitored for growth. Many doctors choose to surgically remove renal adenomas to prevent them becoming cancerous .