MedGen

A calcified structure that forms within a vein. The pathogenesis of phleboliths is thought to involve an organized thrombus produced when the peripheral blood flow slows. The thrombus calcifies, form- ing the core of the phlebolith. Then, the fibrinous com- ponent undergoes secondary calcification and becomes attached. Repetition of this process causes enlargement of the phlebolith. [from HPO]

The amount of D-lactate in the urine, normalized for urine concentration, is above the upper limit of normal. L-lactate is a familiar molecule to the human body and is also produced in large amounts in human tissues, depending on metabolic conditions. In contrast, D-lactate is produced only in minute quantities in human tissues, and is therefore not detectable in the bloodstream under normal physiological conditions. [from HPO]