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Appendicitis - lumen becomes filled with mucus and swells...

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Appendicitis Appendicitis is a condition characterised by inflammation of the appendix. It is the most common cause of severe abdominal pain in the UK. Symptoms Appendicitis typically presents with:- Pain – initially vague and peri-umbilical then localised to the Right Iliac Fossa Lack of Appetite Nausea and Vomiting Fever Rebound tenderness over the RIF Pain localised to RIF when pressure applied to LIF (Rovsing's Sign) Despite most patients presenting in this way, Appendicitis can present with non-specific symptoms and mimic other abdominal conditions. This is especially the case in the very young and the very old. Causes Appendicitis is most commonly cause by obstruction of the lumen of the appendix. Once obstructed the
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Unformatted text preview: lumen becomes filled with mucus and swells. This Intraluminal swelling stretched the walls of the appendix resulting in thrombosis and occlusion of the small vessels and stasis of lymphatic flow. The anaerobic environment of the blocked appendix allows the bacteria which normally inhabit the bowel to invade the wall of the appendix, causing infection. Eventually the appendix becomes avascular, begins to necrose and becomes prone to rupture. Cause of Occlusion • Faecalith (compact faecal material) is the most common cause • Intestinal worms • Tumours • Swollen glandular tissue (viral infections, lymphoma)...
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