PMC6048239_01
Interstitial pregnancy. (A) Coronal view of the uterus on transvaginal ultrasound showing an empty cavity with a mass of 35.7 mm in diameter. (B) Hysteroscopy shows the ectopic interstitial pregnancy localized in the left tubaric corner.
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F1
Transvaginal ultrasonography revealed an empty uterine cavity but a mass of 35.7 mm in diameter characterized by a hypoechoic central area was seen in the interstitium (Figure 1A). The ectopic interstitial pregnancy localized in the left tubaric corner was confirmed by the hysteroscopy (Figure 1B).
Treatment scheme consists in IM MTX 1 mg/kg alternated with 0.1 mg/kg folinic acid for 5 days.
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F2
The therapeutic scheme was shown in Figure 2.
Serum level of beta-hCG during hospitalization. A progressive decrease of serum beta-hCG was monitored until reduced to zero 35 days after the first MTX injection.
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F3
Notably, more than beta-hCG 15% reduction was detected between the 4th (30,831 IU/L) and the 7th (21,844 IU/L) day after the beginning of the treatment (Figure 3).