Missed miscarriage

A missed miscarriage, sometimes termed a missed abortion 3, is a situation when there is a non-viable fetus within the uterus, without symptoms of a miscarriage.  

Radiographic features


A crown rump length (CRL) of ≥7 mm without a heartbeat on a endovaginal ultrasound confirms the diagnosis.

Additional clues are presence of abnormal hyperechoic material within the uterine cavity and an irregular gestational sac.  

If there is an absence of the heartbeat in a fetus that is less than 7 mm, the diagnosis of miscarriage cannot be made with certainty. This scenario is termed "pregnancy of uncertain viability (PUV)", and follow up with ultrasound (generally in 7-10 days) and serial beta hCG levels recommended.

Share Article

Article Information

rID: 7233
System: Obstetrics
Section: Pathology
Synonyms or Alternate Spellings:
  • Missed Miscarriage
  • Missed abortion
  • Early fetal demise
  • Early intrauterine fetal demise
  • Early loss of pregnancy

Support Radiopaedia and see fewer ads

  • Drag
    Case 1
    Drag here to reorder.
  • Drag
    Embryo > No heart...
    Case 2
    Drag here to reorder.
  • Updating… Please wait.

    Alert accept

    Error Unable to process the form. Check for errors and try again.

    Alert accept Thank you for updating your details.