Table 1. Gestational age at first sonographic detection according to the detected anomaly

(1)

Table 1. Gestational age at first sonographic detection according to the detected anomaly

Ovarian

cyst

Duodenal

atresia

Dilated bowel

Umbilical vein varix

Choledochal

cyst

Unclear

origin

Rarer

cases

1st trimester

0

1

2

1 2nd trimester

1

8

3

1

5

3 3rd trimester

41

6

8

12

1

4

2 Weeks' gestation

(Mean±SD)

33±3

31±5

26±6

29±4

22±10

24± 9

24±7

(2)

Table 2. Outcome of fetuses with dilated bowel related to gestational age (GA) at diagnosis

GA at diagnosis

Final diagnosis of bowel atresia

yes no

Case 1 18 

Case 2 20 

Case 3 20  (IUFD: small bowel atresia at autopsy)

Case 4 21 

Case 5 21  (postnatal death : suspect of Jeune’s syndrome)

Case 6 22 

Case 7 22 

Case 8 24 

Case 9 25 (small bowel atresia)

Case 10 29 

Case 11 31 

Case 12 31 (small bowel atresia)

Case 13 34 (small bowel atresia)

Case 14 34  (Chloride diarrhea)

(3)

Table 3. Suspect of choledochal cyst (VD vaginal delivery, CS cesarean section, BW birth weight)

GA

US aspect

Mean

diameter

Mean d/BPD

ratio

Disappearance

Last mean

diameter

Last mean

d/BPD ratio

Delivery

Case 1 13

anechoic

14

0.5 yes (25wks)

13

0.2 VD 40wks Apgar score

9 BW 3110g

Case 2 33

Anechoic with

sepimentations

19

0.2 yes (38 wks)

16

0.2 CS 40wks Apgar score

9 BW 3480g

Case 3 20

anechoic

11

0.2 no

20

0.2 VD 40wks Apgar score

(4)

Table 4. Evolution in diagnosis of unclear cases with a complete follow up

GA at diagnosis

1st level scan suspect 2nd level scan suspect Final diagnosis

Case 1 13 Abdominal cyst of unknown origin

Parailiac cyst of unknown origin Disappeared during pregnancy and undetectable at postnatal US. Enteric duplication cyst detected at 4 months old

Case 2 14 Dilated bowel loops Abdominal cyst of unknown origin Disappeared during pregnancy

Case 3 21 Retrovescical cyst and polycystic kidneys

Abdominal cyst of unknown origin and polycystic kidneys

Vaginal atresia (associated with polycystic kidneys and post axial esadactyly : suspect of Mac Kusick syndrome)

Subhepatic cyst Disappeared at postnatal follow up

Bilobed abdominal cyst of unknown origin

Disappeared at postnatal follow up

Abdominal cyst of unknown origin Disappeared during pregnancy, IUFD (cyst undetectable at autopsy)

Case 7 33 Hyperechoic bowel Subhepatic complex cyst Meconium peritonitis

Sub diaphragmatic cyst of unknown origin

Disappeared during pregnancy

Abdominal cyst of unknown origin probably hepatic

(5)

Table 5. Outcome of pregnancies according to the anomaly suspected at US

Ovarian

cyst

Duodenal

atresia

Dilated bowel

Umbilical vein varix

Choledochal

cyst

Unclear

origin

Rarer

cases

TOP

0

0 1*

0

4 IUFD

0

2

1

0

1

1 Alive and well

27

0

10

11

3

5

0 Alive and well after

surgery

5

4

2

0

2

0 Postnatal death

0

1

0

1 Alive with impairment

0

1

0

1

0

(6)

Table 6. Presence of associated anomalies

Ovarian cyst

Duodenal atresia

Dilated bowel

Umbilical vein

varix

Choledochal

cyst

Unclear

origin

Rarer cases

No

concurrent

anomalies

34

1

11

3

9

2 Concurrent

anomalies

Kidney pyelectasys (2) Bilateral hydroureteronephrosis (1)

Golf ball and VSD (1) Polyhydramnios (2) Oligohydramnios (1) Transient anemia (1) Polyhydramnios (IUFD)(1) Polyhydramnios, monolateral kidney agenesis and enteric duodenal duplication cyst (1)

Polyhydramnios , Meckel’s diverticulum and bifid thumb (1) IUGR, polyhydramnios and ascites (IUFD) (1) Trisomy 18,

polyhydramnios, esophageal and rectal atresia, aortic coartation (Postnatal death) (1) Trisomy 21 polyhydramnios (1) Polyhydramnios (alive and well after surgery) (1) Polyhydramnios (postnatal death: suspect of Jeune’s syndrome) (1) Polyhydramnios (chloride diarrhea) (1) Monolateral agenesis of toe (1) Hyperechoic bowel (1) Trigonocephaly and kidney pyelectasy (epilepsy and neurodevelopment delay) (1) Achondroplasia and polyhydramnios (TOP) (1)

Pelvic kidney with pyelectasy (1) Prevalence of right heart (2) 0 Choroid plexus cysts (IUFD) (1) Polycystic kidneys (suspect of Mckusick-Kaufman syndrome) (1) Cloacal anomaly and imperforate anus (postnatal death) (1) Sacrococcygeal teratoma (TOP) (1) Body Stalk anomaly (TOP) (1)

Lymphangioma (TOP) (1)

(7)