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A cystic hygroma is a fluid-filled sac that results from a blockage in the lymphatic system . It is most commonly located in the neck or head area, but can be located anywhere in the body. It may be discovered in a fetus during a pregnancy ultrasound , or it may be apparent at birth as a soft bulge under the skin.









A complication of tonsillitis in which the infection spreads behind the tonsils.
A peritonsillar abscess occurs when a collection of pus forms and infection spreads beyond the tonsils into the neck and chest. Swollen tissues can block the airway.





















Sterilization refers to any process that removes, kills, or deactivates all forms of life and other biological agents like prions present in a specific surface, object or fluid, for example food or biological culture media.