title: Computed tomography of a double inferior vena cava: the "double cava" sign.
abstract: Right-sided retroperitoneal adenopathy or right adrenal masses demonstrated by CT in cross sectional display may mimic the CT appearance of the inferior- vena cava. This finding has been recently described as the "double cava" sign. The authors report this sign in a patient who actually has a double IVC. "CT angiography" with the technique described herein, will determine that the retroperitoneal structures demonstrated by CT are indeed vessels rather than enlarged nodes or adrenal masses.
mesh_terms: D000310:Adrenal Gland Neoplasms / Q000000981:diagnostic imaging*; D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008206:Lymphatic Diseases / Q000000981:diagnostic imaging*; D011856:Radiographic Image Enhancement; D012187:Retroperitoneal Space; D014057:Tomography, X-Ray Computed; D014682:Vena Cava, Inferior / Q000002:abnormalities* / Q000000981:diagnostic imaging