blood clot within the endometrial cavity

Intrauterine blood clot can result from a number of situations in gravid, non-gravid and postpartum states. It can mimic many other pathologies.

Pathology

Any condition that predisposes to an intrauterine hemorrhage can potentially result in an intrauterine blood clot.

Radiographic features

Ultrasound

• may be seen as material expanding the uterine cavity (if large) or focal intracavitary content (if small)
• the echotexture is usually heterogeneous although can vary according to the stage of clot
• color Doppler interrogation shows no associated flow: this can be a useful distinction with other differential diagnoses

Differential diagnosis

There can be a relatively wide differential depending on the clinical context:

• if following a miscarriage, consider retained products of conception (RPOC): often has associated increased Doppler color flow (though note that RPOC may be avascular)
• if following an intra-uterine procedure, consider intrauterine gossypiboma
• if there are the multiple small cystic spaces with a positive beta HCG, consider molar pregnancy
• if there is thickening of the endometrium with small cystic spaces with a negative beta HCG, consider tamoxifen-induced endometrial changes

Siehe auch:

• Blasenmole
• Gossypibom
• retained products of conception
• Fehlgeburt
• Tamoxifen induced endometrial changes

und weiter:

• endometrial polyp
• endometrial hyperplasia
• differential diagnosis of an enlarged uterus
• abnormally thickened endometrium