Fluid-filled sacs that develop behind the knee are called popliteal cysts . They can be hard to get rid of and come back repeatedly after treatment. They often have thick, twisted roots that go deep. Two doctors from South Korea report on the use of arthroscopy to remove large popliteal cysts. The study included 14 patients with cysts that caused loss of knee motion, pain, and pressure on the nerves. These patients were compared to a control group of eight patients with the same condition who had open surgery instead of arthroscopy. In arthroscopic cyst removal, the doctor inserts a long, slender tool into the fluid-filled sac. A tiny TV camera on the end gives the doctor a good view inside. Fluid is removed from the cyst. Using a small, motorized shaver, the cyst is then shaved away. Doctors are careful to keep the shaver pointed away from nerves and blood vessels. During the operation any flaps, thick bands, or other fibrous membranes are removed. Surgeons check the knee joint for other...
Alternative Names Urticaria Prevention Avoid exposure to substances that give you allergic reactions.
Don't wear tight-fitting clothing and avoid hot baths or showers just after an episode of hives. These can both cause the hives to return. References Habif TP, ed. Clinical Dermatology . 5th ed. Philadelphia, Pa: Mosby Elsevier; 2009.
Treatment - hives; Treatment - urticaria
Treatment may not be needed if hives are mild -- they will go away on their own. Antihistamines may reduce inflammation, itching, and swelling.
in the throat may block the airway. This is a medical emergency. If the face or throat swells, breathing problems occur, or hives persist, contact your health care provider immediately!
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