Renal cyst grading

The grading of renal cysts is a classification standard obtained after CT examination. It is divided into multiple levels, mainly simple, benign, follow-up and malignant. There is also another type that is malignant. Malignancy means obvious enhancement, uneven cyst wall, thickening, and large nodules. The malignant rate can be as high as over 90%. In daily life, we must prevent renal cysts and check them in time if they occur.

Renal cyst grading

Bosniak renal cyst classification criteria based on CT examination results: Class I (simple): thin wall, no septa, no calcification, no soft tissue; water density, CT value <20hu, no enhancement (malignancy probability <2%). Class II (benign): thin wall <1 mm, no enhancement; may have 1-2 thin-walled septa; small calcification; high-density lesions <3 cm (malignancy probability 0-14%). Category IIF (follow-up): microenhancement and/or mild thickening of the cyst wall or septa; mild thickening or nodular calcification; non-enhancing soft tissue; non-enhancing high-density lesions >3 cm (probability of malignancy is approximately 20%). Class III (malignant): irregular enhancement of the cyst wall and septa; uniform thickening of the cyst wall; nodular or irregular calcification (malignant probability 30%~60%) Class IV (malignant): obvious enhancement after enhancement (increase of more than 10HU); uneven thickening of the cyst wall; large nodules or clear soft tissue (malignant probability >90%).

How to prevent kidney cysts

1. Patients should control their blood pressure. Most patients with renal cysts will have high blood pressure, which we call the onset of polycystic kidney disease. The onset of high blood pressure will accelerate the damage to renal function. At the same time, high blood pressure will also damage the heart and brain blood vessels. Polycystic kidney disease will be accompanied by ruptured and bleeding of cerebral aneurysms, causing serious complications such as stroke. Therefore, controlling blood pressure is very important to slow down the deterioration of renal function and prevent complications. 2. Patients should maintain a good diet. A reasonable renal diet for patients with polycystic kidney disease is very important for controlling the progression of renal function deterioration. Adopt a low-salt diet with 2 to 3 grams of salt per day, eat less potassium and phosphorus, eat a low-protein, low-fat diet, eat more foods rich in vitamins and plant crude fiber, and keep the bowels open.