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Lymphangiectasia

Lymphangiectasia is an enlargement of the lymphatic vessels in the limbs, in the organs of the thoracic and abdominal cavities due to circulatory disorders, diseases of the lymph nodes. In lymphangiectasia, the lymphatic vessels are dilated, crimped, the affected organ is swollen.

Treatment : on the limbs - bandaging, on a limited area of ​​the skin - excision.

Lymphangiectasia (lymph + Greek angeion - vessel and ektasis - expansion) - expansion of the lymphatic vessels; it can be primary and secondary. Primary lymphangiectasia is rare, mainly in the lung (congenital pulmonary lymphangiectasia or pulmonary lymphangiectatic cysts). Regarding the nature of pulmonary lymphangiectasia, there are three points of view: 1) the developmental malformation of the lung lymphatic system, 2) the developmental malformation of the connective tissue framework of the lung, and 3) the post-embryonic obliteration of the lymph outflow tract from the lungs.

The surface of the lung tissue looks like granular. Under the microscope, the abundance of interlobular, peribronchial and perivascular lymphatic cysts is determined. The disease is accompanied by cyanosis and pulmonary heart disease. With a unilateral process, surgical treatment is possible.

Primary lymphangiectasia in the extremities is accompanied by the so-called primary lymphangiopathy, which is based on hypoplasia or aplasia of the lymphatic vessels; eventually lymphoedema rgaesoh develops (see Ivory). Pathoanatomical: a sharp thickening of the intima of the lymphatic vessels, sclerosis of the media and adventitia, which explains the term "obliterating lymphangiopathy".

Secondary lymphangiectasias are common, associated with edema and lymphostasis. Their appearance is explained by the close connection of the walls of the lymphatic capillaries with the surrounding connective tissue fibers. The edematous fluid moves these fibers apart and moves them apart, as a result of which the lumens of the lymphatic capillaries remain open. A similar mechanism of lymphangiectasia is also observed in inflammation. Expansion of the lymphatic vessels leads to insufficiency of lymph circulation and rupture of the wall of the lymphatic vessel with a picture of lymphorrhea.