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Lesion types
|
Lesion definition
|
Characteristics
|
| Acute thrombus | Noncompressible; deformable under probe push; regular profile; dilated vein |
| Subacute thrombus | Change in acute thrombus aspect few weeks apart, not includable in chronic post-thrombotic change definition (no later than 6 mo after clot formation) |
| Chronic post-thrombotic change | Noncompressible; resists to pressure deformation; non-uniform profile; reduced/normal vein caliber |
