LAUSR

Chronic ectopic pregnancy (CEP) is a variant of ectopic pregnancy characterised by an adnexal mass with fibrosis, necrosis, and villi, in the setting of low or absent serum beta human chorionic gonadotropin (b-HCG) (Tempfer et al. 2019). In contrast to the well-recognised acute ectopic pregnancy, CEP remains ill-defined (O’Neill et al. 2018). In a systematic review, its incidence ranged between 6% and 20% and its clinical presentation was highly variable ranging from acute abdominal pain to very subtle symptoms. Approximately 18% of CEP were asymptomatic, making the diagnosis more challenging (Tempfer et al. 2019). Heterotopic pregnancy is a rare condition characterised by the co-existence of an intrauterine pregnancy and an ectopic pregnancy (Aziz and Arronte 2020). Chronic heterotopic abdominal pregnancy (CHAP) describes the presence of an abdominal CEP concomitantly to an intrauterine gestation and has not been reported in literature. We describe an unusual case of CHAP discovered incidentally during a caesarean section.