Rationale: Diabetic foot ulcer is a severe complication of diabetes, and most patients with diabetic foot ulcer require amputation. The incidence of Budd-Chiari syndrome is low; it is relatively rare. Diabetic foot ulcer combined with Budd-Chiari syndrome has not been reported so far.
Patient concerns: A 52-year-old man presented with uncontrolled high body temperature, continued expansion of the lower leg and foot ulcer with increasing malodor.
Diagnosis: The patient was diagnosed with Wagner grade 4 diabetic foot ulcer combined with Budd-Chiari syndrome.
Interventions: Critical treatment was performed immediately after his admission to the hospital. After the patient's condition was stable, we performed an interventional procedure to relieve the inferior vena cava obstruction. Debridement was then performed on the diabetic foot ulcer. Finally, skin grafting was performed due to condition of the wound. We completed moist healing and vacuum sealing drainage throughout the treatment process.
Outcomes: The patient was hospitalized for 56 days, and all his right lower extremity ulcers eventually healed.
Lessons: In the treatment of diabetic foot ulcer combined with Budd-Chiari syndrome, it is necessary to develop a unified treatment plan that includes the timely treatment of Budd-Chiari syndrome upon admission, the strategic use of debridement, and the application of moist healing and vacuum sealing drainage.