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An abnormal mass of lymphatic vessels.



a tumor of the lymphatic vessels.

Most lymphangiomas represent defects of development. They may be localized in any part of the body and its organs and tissues, but they are found most often in the neck, skin, subcutaneous connective tissue, or retroperitoneal space (less frequently, in the liver, spleen, or kidneys). They appear as soft swellings of various dimensions in the skin or subcutaneous tissue and seem to disappear when pressed. Lymphangiomas grow slowly. They become inflamed readily. Treatment is surgical.

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Histomorphometrical study in cavernous lymphangioma of the tongue.
In 10 patients, subtotal excision was performed who were diagnosed to have cavernous lymphangiomas to preserve the neurovascular bundles surrounding them.
Lymphangiomas are subclassified into three morphologic types: capillary lymphangioma (lymphangioma simplex), which is predominantly made up of capillary-sized, thinwalled lymphatics; cavernous lymphangioma, which is made up of dilated lymphatics; and cystic hygroma, which is made up of lymphatic cysts of various sizes.
Cavernous lymphangioma is composed of large, dilated lymphatic vessels