What are the symptoms of kidney cyst

Renal cyst is the most common kidney disease in adults and is mainly caused by structural abnormalities. The presence of a kidney cyst can bring about noticeable symptoms, including pain and discomfort in some parts of the body. Severely ill patients may also have blood in the urine and a mass in the abdomen. If there is any abnormality, a formal examination should be carried out first.

symptom

(1) Discomfort or pain in waist and abdomen: The pain is characterized by dull pain fixed on one or both sides radiating to the lower part and waist and back;

(2) Hematuria: It may be manifested as microscopic hematuria or macroscopic hematuria;

(3) Abdominal mass: sometimes the main reason for patients to seek medical treatment. 60-80% of patients can palpate enlarged kidneys. The larger the kidneys, the worse the renal function.

(4) Proteinuria: Generally, the amount is not much and will not exceed 2 grams in 24 hours, so nephrotic syndrome will not occur;

(5) Hypertension: Cysts compress the kidneys, causing renal ischemia and increased renin secretion, leading to hypertension

diagnosis

1. Basic inspection

1. Urine examination: Urinalysis is normal. If the cyst compresses the renal parenchyma or there is an intracystic infection, a small amount of red blood cells and white blood cells may appear in the urine.

2. B-ultrasound can help you understand the number, size, and condition of the cyst wall. It can also be differentiated from renal solid masses and is the preferred examination method. Typical B-ultrasound manifestations are absence of echo in the lesion area, smooth cyst wall and clear boundary. When the cyst wall shows irregular echo or localized echo enhancement, one should be alert to malignant transformation. In case of secondary infection, the cyst wall thickens, the lesion area has fine echo, and the echo is enhanced when there is bleeding in the cyst. When imaging shows multiple cysts, they should be distinguished from multilocular cysts and polycystic kidney disease.

3. Intravenous pyelography (IVP) can show the extent to which the cyst compresses the renal parenchyma and can distinguish it from hydronephrosis.

2. Further inspection

CT is valuable for those who are uncertain about the diagnosis through B-ultrasound examination. When the cyst is accompanied by bleeding, infection, or malignancy, it will appear heterogeneous and the CT value will increase. When CT shows the characteristics of a cyst, there is no need for cyst puncture.