Bilateral calcified renal artery aneurysms in a patient with von Recklinghausen's disease.

A 68-year-old woman with family history of fibromatous skin lesions was referred for the evaluation of hypertension. With detection of multiple fibromatous skin lesions and café au lait spots, a diagnosis of von Recklinghausen’s disease was made. Because she had not undergone regular physical examination, the history of hypertension was unknown. Findings of bilateral paravertebral calcified round shadows in a plain abdominal radiograph (Figure 1A) indicated secondary hypertension including pheochromocytoma as a cause of hypertension. Computed tomography (CT) of the abdomen revealed that the shadows reflected ring-shaped calcifications at the hilus of both kidneys (Figure 1B). Reconstructed images of enhanced CT demonstrated these ring-shaped calcifications were bilateral calcified renal artery aneurysms but not paravertebral neoplasms (Figure 1C). No stenotic lesions were detected in either renal artery and proper renal perfusion was confirmed by further evaluation