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[Cystic adventitial degeneration. An important differential diagnosis in intermittent claudication]
A Stautner1, A Tsounis, H Stiegler
17. Medizinische Abteilung, Interne Angiologie, Krankenhaus München-Schwabing.
Insights
Cystic adventitial degeneration, a rare cause of intermittent claudication, involves cysts compressing arteries. Ultrasound-guided aspiration offers an effective, less invasive treatment option compared to surgery.
Area of Science:
- Vascular Surgery
- Medical Imaging
- Histopathology
Background:
- Cystic adventitial degeneration (CAD) is a rare condition causing intermittent claudication due to arterial compression by adventitial cysts.
- These cysts, histologically identified as true ganglions, contain gelatinous fluid and can lead to critical limb ischemia if arterial obstruction is complete.
Observation:
- CAD should be considered in cases of isolated popliteal artery stenosis or occlusion.
- Real-time ultrasound is a valuable diagnostic tool for identifying CAD.
- Histological examination reveals intramural, uni- or multilocular cysts filled with muciform fluid.
Findings:
- Surgical intervention, including resectional and non-resectional techniques, has been the standard treatment for CAD.
- Ultrasound-directed percutaneous aspiration has emerged as a less invasive and effective therapeutic approach.
- Case studies demonstrate the course, diagnosis, and treatment outcomes for four patients with CAD.
Implications:
- Less invasive treatments like percutaneous aspiration may improve patient outcomes for cystic adventitial degeneration.
- Early diagnosis using ultrasound can prevent severe complications such as critical limb ischemia.
- Understanding the pathophysiology of CAD is crucial for effective management in vascular surgery.
Abstract:
The cystic adventitial degeneration is a rare disease, but an important differential diagnosis in patients with intermittent claudication. The amount of fluid in the cysts may vary and cause an intermittent compression of the artery. This explains the frequently intermittent symptomatology, leading to a critical ischemia if there is a complete obstruction of the artery. The histologic findings indicate that adventitial cysts are true ganglions. The intramural, uni- or multilocular cysts contain a gelatinous, muciform fluid. The diagnosis of a cystic adventitial degeneration should be considered in cases of isolated stenosis or occlusion of the popliteal artery. Realtime ultrasound helps to establish the diagnosis. The standard treatment has been surgical and has consisted a resectional and non-resectional technique. The ultrasound-directed percutaneous aspiration as a less invasive technique seems to be an effective treatment for this condition. The course, diagnostic and therapy of four patients is demonstrated.