Table 1.
Review of literature of angular pregnancy case reports including ultrasound features
| Author | Year | Number of cases | Gestational age (weeks and day) | Interstitial line sign | Myometrial thickness < 10 mm | Gestational sac fully surrounded by endometrium |
|---|---|---|---|---|---|---|
| Durand et al | 2021 | 2 | 8w | No | Yes (3.9 mm) | Yes |
| 8w | No | Yes (4.2 mm) | Yes | |||
| Laus et al. [10] | 2019 | 1 | 5w6d | – | Yes (6 mm) | – |
| Marfori et al. [15] | 2018 | 1 | 6w | No | Yes (5–8 mm) | – |
| Cordeiro et al. [9] | 2018 | 1 | – | – | – | No (partially) |
| Alanbay et al. [13] | 2016 | 1 | 6w | – | – | Yes |
| Kambhampati [8] | 2012 | 1 | 6w4d | – | Yes (5.5 mm) | – |
| Kwon et al. [12] | 2011 | 2 | 7w | – | Yes (2 mm) | Yes |
| 2nd trimester | – | – | – | |||
| Mayer et al. [14] | 2011 | 1 | – | – | – | – |
| Adam et al. [11] | 2010 | 1 | 5w | – | Yes (7 mm) | –– |
| Tarim et al. [7] | 2004 | 1 | 7w | – | – | – |