31 March 2025
: Case report 
Endovascular Stenting and Factor Xa Inhibitors for Filter-Associated Chronic IVC Occlusion: A Case Series
Challenging differential diagnosis, Unusual or unexpected effect of treatment, Patient complains / malpractice, Unexpected drug reaction, Rare disease
Pengkai Cao EG 1, Xintong Luo B 2, Ruijiao Gao B 1, Yunsong Li D 1, Liang Li D 1, Yanrong Zhang F 1, Xiangdong Liu A 1*DOI: 10.12659/AJCR.946402
Am J Case Rep 2025; 26:e946402
Figure 1. (A) A 48-year-old man with a history of a permanent filter (Simmons Bard Inc.) placement for postoperative PE 16 years ago presented with hyperpigmentation and recurrent non-healing venous ulcers on both legs. (B) CTV revealed bilateral external iliac vein (EIV) and IVC occlusion. (C) Five stents were deployed for revascularization. (D) Significant improvements of hyperpigmentation and venous ulcers at 1-year follow-up.