Polo Mint sign (venous thrombosis)

Dr Ian Bickle et al.

The Polo Mint sign is a description given to a venous thrombosis on contrast-enhanced CT imaging.  When viewed in the axial plane, a thin rim of contrast persists around a central filling defect due to thrombus. This gives an appearance like that of the popular UK mint sweet, the Polo, also referred to as the advertising slogan 'The Mint with a Hole'.

It was originally described to refer to the appearances of a pulmonary embolus on CT pulmonary angiography, but the appearances are the same for any venous thrombosis, such as in the portal vein 1.

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Article information

rID: 21056
Section: Signs
Tags: stub, cases, refs, cases
Synonyms or Alternate Spellings:
  • Polo Mint appearance

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Cases and figures

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    Figure 1: photograph - Polo Mints
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    Case 1: in portal vein
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    Case 2: in the IVC
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    Case 3: pulmonary thromboembolism
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    Case 4
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    Case 5: ovarian vein thrombosis
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