What is a small renal neoplasm?
A small kidney tumor is a growth in the kidney that measures 4 cm (approximately 1.6 inches) or smaller, roughly the size of 2 nickels. The kidneys are 2 bean-shaped organs roughly the size of a fist. The kidneys filter the blood and remove toxins and extra fluid from the body by making urine.
Can a renal neoplasm be benign?
Kidney tumors (also called renal tumors) are growths in the kidneys that can be benign or cancerous.
What is a neoplasm in the kidney?
Kidney neoplasms are common diseases with varying prognoses depending on the subtype of the tumor. The most common solid lesion of the kidney is renal cell carcinoma, and the treatment is typically surgical removal.
What size is considered a small renal mass?
Enhanced renal masses less than 4 cm in size are known as small renal masses (SRMs), and their growth rate (GR) and the possibility of developing metastasis are extremely low.
What is the most common renal neoplasm?
Renal cell carcinoma (RCC), also known as renal cell cancer or renal cell adenocarcinoma, is the most common type of kidney cancer.
At what size should a renal mass be removed?
Small, locally restricted renal cell carcinoma less than 4 cm in size should ideally be removed operatively by nephron-sparing tumour enucleation (partial kidney resection).
How fast do renal tumors grow?
The growth rate of renal masses in that study was 0.28 cm/year (range 0.09–0.86 cm/year). A somewhat faster growth rate was observed in the subgroup of patients with pathologically confirmed renal cancer (0.4 cm/year, range 0.42–1.6 cm/year).
What does a small mass on kidney mean?
A kidney mass, or tumor, is an abnormal growth in the kidney. Some kidney masses are benign (not cancerous) and some are malignant (cancerous). One in four kidney masses are benign. Smaller masses are more likely to be benign. Larger masses are more likely to be cancerous.
Can kidney tumor be removed?
Most kidney tumors and kidney cancer are cured with surgery. Surgery involves removing the entire tumor in the safest manner for each patient, and can be performed through a variety of approaches including a more traditional open incision, laparoscopic surgery or robot-assisted laparoscopic surgery.
What is a renal neoplasm?
Renal Neoplasms. Renal tumors may be benign or malignant. Small tumors are being picked up more frequently by better imaging techniques. These are called small renal masses (SRM), and are less than 4 cm across.
Which imaging modalities are used to diagnose renal cancer?
Imaging modalities used to diagnose tumors of the kidney include ultrasound scanning, CT scanning and MRI, especially when cross-sectional imaging is used. Increased detection of small renal masses has led to a 2% increase in the incidence of renal cell carcinoma (RCC), especially at lower stages.
What is the role of ultrasound in the diagnosis of renal cancer?
Ultrasound contributes additional diagnostic information for differential diagnosis of some renal masses that remain equivocal at CT, including: atypical cystic lesions; solid renal tumors with poor vascularity; and angiomyolipomas with minimal fat component.
What is small renal mass (SRM)?
The term small renal mass (SRM) has been used to refer to these tumors, usually defined as an enhancing tumor less than 4 cm in diameter ( 2 ). This has resulted in a 2% annual increase in the incidence of renal cell carcinoma (RCC) over the past two decades with a migration to lower stages due to smaller size ( 2, 3, 4 ).