lymphatic stasis
Introduction
Introduction Siltation and edema caused by blockage of lymphatic vessels caused by various causes. There are many reasons for lymphatic obstruction, which can be divided into primary (unexplained) and secondary. Secondary include inflammation, tumors, post-injury, and post-radiation therapy.
Cause
Cause
Lymphatic deposits are more common in inflammations that occur in other parts of the body. Physical and chemical factors such as tumors or injuries, diseases can cause lymphatic circulation to be unsmooth, resulting in local siltation, and lymphatic obstruction needs to be early. Under the guidance of the doctor, do a good job of dredge treatment. Active treatment of primary diseases should be done while dredging treatment.
The cause of primary lymphangiogenesis is currently unclear.
Examine
an examination
Related inspection
Urine routine blood routine chyluria urinary sputum urine qualitative test
Several lymphatic lesions that can occur with lymphography:
1. Lymphatic enlargement: shows a widening of the lymphatic vessel with distortion.
2. Lymphatic stasis: 24 hours or more after injection, lymphatic vessels still have iodized oil.
3. Lymphatic extravasation: Lymphatic vessels rupture due to increased pressure in the lymphatic vessels. Lymph enters the interstitial space. Contrast agent extravasation can be seen during angiography. Lymphatic fluid is extravasated to the blood vessels and peripheral nerve sheath. Contrast agent can depict the contour of the blood vessel; lymph fluid breaks into the abdominal cavity, intestinal tube, urinary tract and chest cavity, which can be displayed separately. The contrast agent enters the abdominal cavity, the intestine, the urinary tract, and the chest.
Diagnosis
Differential diagnosis
Lymphatic angiography can be used to determine the presence or absence of lymphatic obstruction and the location of the obstruction, which is of great help to clinical diagnosis and treatment. When analyzing the results of lymphangiography, attention must be paid to the number, diameter, contour, diameter, and valve of the lymphatic vessels. The common X-ray signs of lymphatic obstruction are now combined into the following types, which need to be identified.
1. Decrease or disappearance of the number of lymphatic vessels: common in lymphatic edema of the limbs, which is manifested by a decrease in the number of lymphatic vessels, often accompanied by enlargement, distortion and extravasation of lymphatic vessels.
2. Lymphatic regurgitation: manifested as reverse filling of lymphatic vessels. If the lymphatic vessels around the pelvic organs are found to be filled in the opposite direction, it indicates that the lateral common lymph nodes or lumbar lymph nodes are obstructed.
3. Lymphatic collateral pathway: The appearance of lymphatic collateral pathway is one of the most common signs of lymphatic obstruction, and it is also the main way for the body to overcome obstruction. There are two basic forms of lateral traffic to the lymphatics.
1 lymphatic, venous anastomosis: in the area of lymphatic obstruction, contrast agents are seen intravenously. That is to say, there is a lymphatic anastomosis. Lymphangiography often does not directly see the pathway.
2 lymphatic, lymphatic anastomosis: is the most common collateral pathway, similar to the collateral circulation produced by vascular obstruction. For example, when the lumbar lymph is completely blocked, the contrast agent is shunted to the opposite side through the lymphatic vessel at the aortic bifurcation, showing the contralateral lumbar lymph nodes. If the obstruction is located in the groin or underarm area, extensive subcutaneous collateral lymphatic pathways can be seen in the thigh perineum, external genitalia, and anterior abdominal wall.
Lymphatic occlusion of the extremities usually manifests as lymphedema, and trunk obstruction of the trunk can still cause clinical signs such as chyle ascites, chyluria, and chylothorax.
