геморрагический (обычный) тромб

https://cyberleninka.ru/article/n/rezektsiya-nizhney-poloy-v...
Аналогичные результаты опубликовали R. Ayyathurai и соавт. (2012), описавшие 15 случаев геморрагического тромбоза НПВ, ассоциированного с опухолевым тромбом при раке почки [16].
16. Ayyathurai R., Garcia-Roig M., Gorin M.A. et al. Bland thrombus association with
tumour thrombus in renal cell carcinoma: Analysis of surgical significance and role
of inferior vena caval interruption.
BJU Int 2012;110(11 Pt B):E449–55.
DOI: 10.1111/j.1464-410X.2012.11128.x.
PMID: 22540981

https://evtoday.com/articles/2018-aug/acute-thrombus-of-the-...
The first principle in determining whether anticoagulation is indicated is to differentiate tumor thrombus from traditional thrombus, which is often classified as bland thrombus. A tumor thrombus is not expected to respond to anticoagulation, whereas anticoagulation is the appropriate treatment for traditional or bland thrombi.

Hinman's Atlas of Urologic Surgery E-Book
By Joseph A. Smith, Stuart S. Howards, Glenn M. Preminger
IVC thrombi have two components: tumor thrombus (tumor cells contained within a blood coagulum) and bland thrombus (blood coagulum without tumor cells).