is no more rare or common than in general community, but it has a higher morbidity and mortality because it is confused with other complications of pregnancy
differentiation must be made from pyelonephritis, vomiting of preg, red degeneration of a fibroid or torsion of an ovarian cyst
because the appendix is displaced by the enlarging uterus, pain and tenderness are higher and more lateral than in usual circumstances
there is considerable danger of abortion, particularly in the first trimester.
where the diagnosis is in doubt, an abdominal magnetic resonance scan is helpful and is fortunaately without effect on the foetus.