Ultrasound of lymph nodes

SELCE/RIJEKA

Ultrasound of lymph nodes

Lymph node ultrasound uses sound waves to create an image of the lymph nodes and surrounding tissues, which allows the detection of infections, inflammation, or malignant changes in the lymph nodes.

Duration

15 - 20 minutes

Recommended number

One test, except for monitoring infections or tumors

Who it is for

People with swollen or painful lymph nodes, pain in the neck, armpits, or groin area

Contraindications

There are no contraindications for lymph node ultrasound.

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Duško Banić, MD. spec. radiologist

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Lymph node ultrasound uses high-frequency sound waves to visualize the lymph nodes and surrounding tissue on a screen. Lymph nodes are small, oval-shaped organs that are a key component of the immune system and are found in many places in the body. They filter fluid from tissues (lymph) and help fight infection. Changes in the size or structure of lymph nodes can indicate a variety of health problems, including infections, inflammatory diseases, autoimmune disorders, or malignancies such as lymphomas and metastases.

During the exam, a sensor (Doppler probe) is passed over the skin that has been previously gelled in the area where the lymph nodes are located, usually in the neck, armpit, groin, or abdomen. The sensor emits sound waves, which bounce off structures inside the body and return to the device, creating images that show the size, shape, and density of the lymph nodes. A healthy lymph node usually has a characteristic shape and size, while enlarged or abnormal lymph nodes may indicate a more serious condition.

Lymph node ultrasound is very useful in detecting enlarged lymph nodes, which can be a sign of infection, such as bacterial or viral infections, or malignant diseases, such as cancer or lymphomas. Lymph node enlargement can also be caused by inflammatory processes, autoimmune diseases, or reactions to immunization. This test helps doctors visualize the condition of the lymph nodes, and when combined with other diagnostic tests, such as blood tests and biopsy, can help make an accurate diagnosis.

One of the main advantages of lymph node ultrasound is its non-invasiveness, speed, and safety. The test does not require any special preparation and usually takes between 15 and 30 minutes. In addition, ultrasound does not use ionizing radiation, making it safe for repeated use, if necessary to monitor the patient's condition.

Ultrasound is extremely useful in the early diagnosis and monitoring of diseases involving the lymphatic system, as well as in preventive examinations for people who are at risk of developing lymphatic disorders. If an ultrasound reveals enlarged lymph nodes or other abnormalities, further diagnostics may include a biopsy or CT/MRI scan to determine the cause and severity of the problem. Lymph node ultrasound is therefore important for doctors in diagnosing and planning appropriate therapy for a wide range of diseases.