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A calculus in a vein.



a calculus in a vein formed as a result of the invasion of a thrombus, or blood clot, by connective tissue and the deposition therein of calcium salts. The formation of a phlebolith is associated with thrombophlebitis, usually of a varicose vein. The presence of a phlebolith is asymptomatic; a phlebolith of a deep vein is usually detected by roentgenography. A phlebolith does not require treatment.

References in periodicals archive ?
2) Development of a phlebolith within the hemangioma from a thrombus may cause symptoms and usually leads to diagnosis of the hemangioma.
Phleboliths, which are areas of calcification of an old thrombus resulting in T1 hypointensity and T2 hyperintensity on magnetic resonance imaging, are often seen with hemangiomas.
The venous malformation component may appear as a cystic malformation on precontrast images but will show postcontrast enhancement and may contain phleboliths (Figure 12).
1) Spindle-cell hemangioendothelioma and epithelioid hemangioendothelioma share many features, but the latter exhibits a more solid growth pattern and an absence of cavernous spaces, thrombi, phleboliths, and discrete spindle-cell areas.
31,32] Phleboliths, however, are also common in patients with hemangiomas.