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Abstract Background Hydatid cystic disease (HCD) is primarily a disease of sheep and cattle. Human beings are accidental hosts. It is prevalent in the Tibet Autonomous Region (TAR) of China. In pregnancy, it can cause many complications. Case presentation We present a multigravida with breech presentation at 37 weeks of pregnancy in whom a large pelvic hydatid cyst and multiple hepatic hydatids were diagnosed by ultrasonography. The large pelvic hydatid cyst was drained through the posterior fornix under the guidance of ultrasound, and an external cephalic version was performed. A healthy baby was delivered vaginally with head presentation at term. Conclusion HCD during pregnancy presents with management difficulty. It is important to formulate individualized treatment plans according to the actual situation of the patient and the local level of treatment.

Abstract Background The association between isolated maternal hypothyroxinemia (IMH) and adverse pregnancy outcomes is still controversial. This study aimed to evaluate the association between IMH during the first trimester and adverse pregnancy outcomes in southern Chinese women. Methods This was a hospital-based, retrospective cohort study. The records of 7051 women, including 1337 IMH women and 5714 euthyroid women who had a singleton pregnancy and accepted routine prenatal service at the Third Affiliated Hospital of Sun Yat-Sen University from January 2015 to September 2018, were extracted from the electronic medical records system in this study. Thyroid functions [thyroid-stimulating hormone (TSH), free thyroxine (fT4) and anti-thyroperoxidase autoantibody (TPO-Ab)] had to be measured before 13 weeks and 6 days of gestation. The chi-square test and multivariate logistic regression analysis were applied to evaluate the association between IMH during the first trimester and adverse pregnancy outcomes. Results Prepregnancy obesity [prepregnancy body mass index (preBMI) ≥ 25 kg/m2] was found to be more common in the IMH group (11.2% vs. 6.1%) (P