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What causes the seromas associated with liposuction?

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What causes the seromas associated with liposuction?

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Seromas after liposuction are the result of surgical trauma which injures or destroys the lymphatic vessels within the targeted fatty tissue. Lymphatic vessels are tiny, thin-walled tubular structures located throughout the body, and have the specific function of draining tissues of fluids that leak out of capillary blood vessels. Excessively large liposuction cannulas not only create large empty pockets within targeted fatty tissues, but also remove lymphatic vessels. Both of these conditions encourage the formation of seromas after liposuction. Unfortunately, seromas are a common problem after ultrasonic assisted liposuction (UAL). Ultrasonic liposuction cannulas create a considerable amount of heat which injures blood vessels as well as the delicate lymphatic vessels. Without lymphatic vessels to drain away excessive lymph fluid, the fluid collects within the excavated spaces in the fatty created by the liposuction process.

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