Hyperthyroidism is known to occur uncommonly in pregnancy (about 0.5 per 10
00). The incidence of ectopic pregnancy is approximately 9.6 per 1000 pregn
ancies. Both conditions, if unrecognised and untreated can have potentially
fatal consequences. rye describe a case of hyperthyroidism and ectopic pre
gnancy presenting concurrently, and highlight the difficulties encountered
in diagnosis when two clinical conditions present with indistinguishable cl
inical signs.