Successfully treated isolated renal artery pseudoaneurysm in a patient with Behçet's disease

Renal artery pseudoaneurysm formation and rupture induced by renal abscess: A case report

Severe consequences can ensue from the rupture and hemorrhage of a renal artery pseudoaneurysm, necessitating immediate intervention upon detection. To date, no reports exist on the development of renal artery pseudoaneurysms as a result of renal abscesses. This document introduces the first reported case of this occurrence.

Autoinflammatory diseases and the kidney

The kidney represents an important target of systemic inflammation. Its involvement in monogenic and multifactorial autoinflammatory diseases (AIDs) vary from peculiar and relatively frequent manifestations to some rare but severe features that may end up requiring transplantation. The pathogenetic background is also very heterogeneous ranging from amyloidosis to non-amyloid related damage rooted in inflammasome activation. Kidney involvement in monogenic and polygenic AIDs may present as renal amyloidosis, IgA nephropathy, and more rarely as various forms of glomerulonephritis (GN), namely segmental glomerulosclerosis, collapsing glomerulopathy, fibrillar, or membranoproliferative GN. Vascular disorders such as thrombosis or renal aneurysms and pseudoaneurysms may be encountered in patients with Behcet's disease. Patients with AIDs should be routinely assessed for renal involvement. Screening with urinalysis, serum creatinine, 24-h urinary protein, microhematuria, and imaging studies should be carried out for early diagnosis. Awareness of drug-induced nephrotoxicity, drug-drug interactions as well as addressing the issue of proper renal adjustment of drug doses deserve a special mention and should always be considered when dealing with patients affected by AIDs. Finally, we will explore the role of IL-1 inhibitors in AIDs patients with renal involvement. Targeting IL-1 may indeed have the potential to successfully manage kidney disease and improve long-term prognosis of AIDs patients.

Coil embolization of ruptured distal renal artery pseudoaneurysm with gross hematuria and hemorrhagic shock

Renal artery pseudoaneurysms have been infrequently reported in the literature. In the present report, we have described a case of a ruptured renal artery pseudoaneurysm requiring coil embolization. A 49-year-old man had presented to our institution with a hypertensive emergency. Computed tomography revealed a 3.4-cm right renal artery pseudoaneurysm. Nonemergent coil embolization was planned for the following day. However, he became hypotensive, exsanguinating frank blood from the urethra. An arteriogram showed extravasation of contrast into the pseudoaneurysm sac, renal pelvis, and ureter, consistent with intrarenal pseudoaneurysm rupture. We have demonstrated coil embolization as a method of repairing a ruptured renal artery pseudoaneurysm with gross hematuria.

Spontaneous rupture of a renal artery pseudoaneurysm in a hemodialysis patient: A case report

RATIONALE

Renal artery pseudoaneurysm is a rare vascular lesion usually caused by trauma or percutaneous urological procedures. Spontaneous rupture of pseudoaneurysms without predisposing events, especially in hemodialysis patients, has rarely been reported.

PATIENT CONCERNS

A 25-year-old man receiving maintenance hemodialysis visited the emergency room because of sudden severe right flank pain. He had no history of trauma or urological procedures except for a left renal biopsy to diagnose Alport syndrome 10 years prior.

DIAGNOSIS

Contrast-enhanced computed tomography revealed a right perirenal hematoma with pseudoaneurysms.

INTERVENTIONS

On renal angiography, multiple pseudoaneurysms were observed in the right renal artery branches and embolization was performed.

OUTCOMES

Post-angiography showed no pseudoaneurysms. His abdominal pain improved, and he was discharged 2 weeks after embolization.

LESSONS

When maintenance dialysis patients complain of severe abdominal pain, spontaneous rupture of a renal pseudoaneurysm should be considered as a differential diagnosis, even if the patient has no history of trauma or previous urological procedures.

Isolated brachial artery aneurysm successfully treated with a covered stent in a patient with Behçet's disease

Behçet's disease is a vasculitic pathology characterized by skin lesions, genital ulcers, aphthous stomatitis, and uveitis. Arterial aneurysms are rare in this disease. Herein, we report a rare case of an isolated brachial artery aneurysm with a history of Behçet's disease treated with endovascular covered stenting of the brachial artery.