Ring of fire sign (adnexa)

Last revised by Dr Bahman Rasuli on 23 Jul 2020

The ring of fire sign, also known as ring of vascularity, signifies a hypervascular lesion with peripheral vascularity on color or pulsed Doppler examination of the adnexa due to low impedance high diastolic flow 1.

This sign can be seen in:

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Cases and figures

  • Case 1: in ectopic pregnancy
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  • Case 2: ectopic pregnancy
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  • Case 3: normal corpus luteum cyst
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  • Case 4: ruptured tubal ectopic pregnancy
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