Items tagged “appendix”
8 results found
Article
Appendicolith
An appendicolith is a calcified deposit within the appendix. They are present in a large number of children with acute appendicitis and may be an incidental finding on an abdominal radiograph or CT. Incidence may be increased among patients with a retrocaecal appendix. Overall they are seen in 1...
Article
Perforated appendix
A perforated appendix is one of the complications of acute appendicitis. When appendicitis is left untreated, necrosis (gangrene) of the appendiceal wall can occur and progress to a focal rupture.
Epidemiology
The rate of perforated appendix vary from 16% to 40%, with higher incidence in young...
Article
Neonatal appendicitis
Neonatal appendicitis is rare, presumably in part due to the short funnel shape of the appendix at that age. Symptoms are non-specific and may mimic necrotising enterocolitis.
Article
Arrowhead sign (caecum)
The arrowhead sign refers to the focal caecal thickening centred on the appendiceal orifice, seen as a secondary sign in acute appendicitis. The contrast material in the caecal lumen assumes an arrowhead configuration, pointing at the appendix.
The arrowhead sign is applicable only when enter...
Article
Caecal bar sign (acute appendicitis)
The caecal bar sign is a secondary sign in acute appendicitis. It refers to the appearance of inflammatory soft tissue at the base of the appendix, separating the appendix from the contrast-filled caecum.
See also
arrowhead sign
Article
Appendiceal mucocele
Appendiceal mucoceles occur when obstruction of the appendiceal lumen causes mucus to accumulate and progressively distend the appendix. The term describes an imaging appearance rather than a pathological entity. The underlying causes lie on a spectrum between benign obstruction with retention c...
Article
Testicular appendix
A testicular appendix (alternatively called appendix of testis or appendix testis, and historically also known as hydatid of Morgagni) represents a developmental remnant of the paramesonephric duct (Müllerian duct) which is situated in the upper pole of the testis inside a groove between the tes...
Article
Appendiceal intussusception
Appendiceal intussusception happens when the appendix segment is pulled into itself or into the caecum. This condition can mimic various chronic and acute abdominal conditions. It is an important entity to recognise since it could be mistaken for a caecal mass.
Epidemiology
Appendiceal intussu...
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