title: Doppler Ultrasonography Findings During Recovery Period of Transplanted Kidney After Infarction and Necrosis Due to Renal Vein Thrombosis: A Case Report.
abstract: A 47-year-old male patient underwent living-related renal transplant. On day 3 posttransplant, without evidence of associated clinical symptoms, the patient's serum creatinine levels had increased. The patient was given immunosuppressive medication, and a followup Doppler ultrasonography revealed hypoechoic areas in the inferior pole of the renal parenchyma. Eventually, on day 25, there was no perfusion in the superior and inferior poles of the transplanted kidney. No venous flow was shown in the middle segment, and only arterial vascularization with a high resistive index and negative diastolic phase was observed. Renal biopsy showed acute humoral rejection. This was interpreted as venous thrombosis secondary to acute humoral rejection. Tissue plasminogen activator infusion, plasmapheresis, and hemodialysis were administered. After 1.5 months, arterial flow returned to its normal pattern and the renal allograft recovered by gaining back its full vascularity at the end of month 8.
authors.affiliation: Department of Radiology, Baskent University School of Medicine, Ankara, Turkey.
authors.forename: Funda
authors.initials: F
authors.lastname: Ulu Ozturk
authors.forename: Nihal
authors.initials: N
authors.lastname: Uslu
authors.forename: Eda
authors.initials: E
authors.lastname: Yilmaz Akcay
authors.forename: Mehmet
authors.initials: M
authors.lastname: Haberal
mesh_terms: D064591:Allografts; D001706:Biopsy; D006084:Graft Rejection / Q000000981:diagnostic imaging* / Q000209:etiology / Q000503:physiopathology / Q000628:therapy; D006801:Humans; D007150:Immunohistochemistry; D007238:Infarction / Q000000981:diagnostic imaging* / Q000209:etiology / Q000503:physiopathology / Q000628:therapy; D007668:Kidney / Q000098:blood supply* / Q000473:pathology; D016030:Kidney Transplantation / Q000009:adverse effects*; D019520:Living Donors; D008297:Male; D008875:Middle Aged; D009336:Necrosis; D010956:Plasmapheresis; D011237:Predictive Value of Tests; D020127:Recovery of Function; D012079:Renal Circulation; D006435:Renal Dialysis; D012082:Renal Veins / Q000000981:diagnostic imaging* / Q000503:physiopathology; D015912:Thrombolytic Therapy; D013997:Time Factors; D016896:Treatment Outcome; D018615:Ultrasonography, Doppler, Color; D020246:Venous Thrombosis / Q000000981:diagnostic imaging* / Q000209:etiology / Q000503:physiopathology / Q000628:therapy