Phleboliths

Phleboliths are literally "vein stones", and represent calcification within venous structures. They are particularly common in the pelvis where they may mimic ureteric calculi, and are also encountered frequently in venous malformations. There is an association with Maffucci syndrome

Radiographic features

Phleboliths appear as focal calcifications, often with radiolucent centers (if present, a helpful sign to distinguish them from urolithiasis). This appearance is attributed to calcification peripherally within the vessel, and is frequently seen on abdominal radiographs (66% of phleboliths 2). It can also be seen on CT provided thin sections are obtained (at 5 mm thick slices radiolucent centers will be inapparent in 99% of phleboliths 2).

Differential diagnosis

Two signs are helpful in distinguishing a ureteric calculus from a phlebolith:

  1. comet-tail sign: favours a phlebolith
  2. soft-tissue rim sign: favours a ureteric calculus
Edit Article Share
URL of Article

Article Information

rID: 10392
System: Vascular
Section: Gamuts
Tags: stub, refs
Synonyms or Alternate Spellings:
  • Phlebolith
  • Drag
    Venous malformati...
    Case 1: venous malformation
    Drag here to reorder.
  • Drag
    Cropped image
    Case 2: in left cervical region
    Drag here to reorder.
  • Drag
    Phleboliths
    Case 3
    Drag here to reorder.
  • Drag
    Case 4: mimicking ureteral calculi
    Drag here to reorder.
  • Updating… Please wait.
    Loadinganimation

    Alert_accept

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

    Alert_accept Thank you for updating your details.