This is an automatically translated article.
The article was professionally consulted by Specialist Doctor I Tran Cong Trinh - Radiologist - Radiology Department - Vinmec Central Park International General Hospital. The doctor has many years of experience in the field of diagnostic imaging.Cervical lymph node ultrasound is one of the modern examination methods to help detect and diagnose diseases related to cervical lymph nodes.
1. What is a lymph node?
Lymph nodes are small lymph nodes, with an average of about 500-6000 nodes located along the path of the lymphatic vessels. The ganglion is covered by a fibrous, smooth structure.Lymph nodes play a very important role in the body's immune system. In addition, based on lymph nodes, the doctor can evaluate and diagnose some diseases such as inflammation, cancer.
By common sense, it is difficult to palpate lymph nodes. A few lymph nodes that are visible to the naked eye are: Lymph nodes in the neck, lymph nodes in the groin, lymph nodes behind the ears...
Hạch bạch huyết rất khó nhìn thấy bằng mắt thường
2. What is cervical lymph node ultrasound?
Cervical lymph node ultrasound is a technique that uses high-frequency ultrasound waves to capture images of the internal structures of the cervical lymph nodes. Through the images obtained, the doctor will detect and diagnose diseases or abnormal problems. Cervical lymph node ultrasound is a safe, non-invasive method that does not cause pain or discomfort to the patient. Cervical lymph node ultrasound is also quick, low-cost, and suitable for most patients.Through cervical lymph node ultrasound, the doctor can observe the position, size, density, shape of the cervical lymph nodes. Based on abnormal signs to determine disease status.
Neck lymph node ultrasound procedure:
The doctor applies a specialized gel on the ultrasound machine transducer Use the ultrasound machine probe to move in the neck area to determine the image High frequency ultrasound waves will emit a signal , record the image of the cervical lymph node structure and reflect it on the ultrasound screen The doctor observes the ultrasound image, prints the resulting image.
Siêu âm hạch cổ giúp chẩn đoán nhiều bệnh lý liên quan đến ung thư, viêm
3. What diseases do cervical lymph node ultrasound detect?
3.1. Depends on the location of the lymph nodes
In most cases, lymph nodes located deep within the peritoneal layer are indicative of Lymphoma. In case the lymph nodes are located next to the aorta, there is a possibility of diseases such as Hodgkin's, non-Hodgkin's.3.2 Based on the shape of the cervical lymph nodes
Normally, the cervical lymph nodes will have an elongated oval shape. If the lymph nodes are round, they are usually malignant. The metastatic lymph node will be round in shape, and the lymph node shell is irregularly thick.If the lymph nodes are concentrated around only one major blood vessel axis: arteries and veins, it may be a sign of Lymphoma or tuberculosis. In Lymphoma, lymph nodes may gather behind the peritoneum and spread to the retroperitoneal spaces, compressing vascular structures.
Hạch ác tính có biểu hiện hình tròn
3.3 Based on cervical lymph node size
A normal cervical lymph node will be about 1cm in size. If the lymph node is over 1cm in size, it means that the lymph node is swollen and inflamed.3.4 Based on the number of cervical lymph nodes
Inflammatory lymph nodes will not grow in number. If many lymph nodes appear from the beginning, it may be a sign of acute or chronic leukemia. Uneven distribution of lymph node density is common in tuberculosis nodes.
Số lượng hạch nhiều có thể là dấu hiệu của bệnh bạch cầu
4. When should cervical lymph node ultrasound be performed?
The cervical lymph nodes play a very important role in the body's immune system. Therefore, abnormalities of the cervical lymph nodes can greatly affect health. When seeing the following abnormal signs, the patient should go to the hospital for examination as soon as possible:Feel the swollen lymph nodes Observe the many lymph nodes in the neck Feel the pain in the lymph nodes. A lot of pain at night The neck skin around the lymph nodes is red, swollen, bruised, sore... Accompanying symptoms: Fever, fatigue, loss of appetite...
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