Feeding artery sign (endometrial polyp)

Last revised by Dr Daniel J Bell on 05 May 2022

Feeding artery sign (a.k.a. pedicle artery sign) refers to the presence of a single feeding artery to endometrial lesion using color/power Doppler on ultrasonography. It is often seen in endometrial polyps 1. The feeding vessel indicates the stalk attachment of the polyp to the uterus.

Endometrial polyps may be isoechoic and sometimes hard to detect on B-mode ultrasound. The application of color/power Doppler shows the presence of a prominent feeding artery that confirms the diagnosis of endometrial polyp and aids in its detection even in asymptomatic patients 1.

The presence of a vascular pedicle is 76% sensitive and 95% specific for endometrial polyps 2.

Differential diagnosis

This sign is not pathognomonic for endometrial polyps as it can occasionally be seen with submucosal fibroids or endometrial carcinoma.

Submucosal fibroid may show a rim-like vessel pattern, with a surrounding circular or semicircular vessel, or with a few small scattered accompanying vessels 3.

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Cases and figures

  • Case 1: power Doppler
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  • Case 1: spectral Doppler
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  • Case 2
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  • Case 3
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  • Case 4
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  • Case 5
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  • Case 6
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