title: Proceedings: The use of ultrasound in the diagnosis of extension of malignant renal tumours into the inferior vena cava.
mesh_terms: D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis*; D009383:Neoplasms, Vascular Tissue / Q000175:diagnosis*; D014463:Ultrasonography; D014682:Vena Cava, Inferior