Aneurysma spurium

Aneurysma

spurium nach Katheterintervention über die rechte Leiste. Die direkte Verbindung von der A. femoralis communis zudem Aneurysma spurium ist nicht sicher darstellbar, somit wohl sehr klein (Stichkanal).

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Ventricular

pseudoaneurysm secondary to myocardial infarction – an exuberant presentation. a) Three chambers view demonstrates the myocardium pseudoaneurysm (star), with a narrow neck (arrow), contained by pericardial tissue. Left ventricle; LA - Left atrium; SSFP - steady state free precession sequences.

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Aneurysma

spurium der A. profunda femoris links nach komplexer Revisionsoperation einer Hüftendoprothese. Links Computertomographie: Das kleine Feeder-Gefäß (Pfeil) ließ sich nach oben als Ast der A. profuna femoris identifizieren. Man sieht neben dem lokalen kontrastierten Blutaustritt eine große Einblutung vor allem in die ischiocrurale Muskulatur. Rechts primäre Darstellung in der DSA nach Cross-over-Sondierung: Der Kontrastmittelaustritt ist vom Prothesenschaft partiell überdeckt.

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Aneurysma

spurium der A. profunda femoris links nach komplexer Revisionsoperation einer Hüftendoprothese. Nach Drehung des C-Bogens konnten die Blutung und das Feeder-Gefäß frei dargestellt und mit Coils embolisiert werden. Dabei wurde ein erster 3 mm Coil beim Versuch der Platzierung unmittelbar an der Leckagestelle in die Blutungshöhle abgeschwemmt. Nach weitereren 4 mm Coils dann komplettes Sistieren der Blutung.

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Aneurysma

spurium der rechten A. femoralis superficialis nach Herzkatheter. Die im Vergleich zu den Arterien geringere Kontrastierung des Aneurysmalumens deutet auf eine sehr schmale Verbindung hin. Links axial, rechts sagittal.

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False

aneurysm • Post renal transplant pseudoaneurysm - Ganzer Fall bei Radiopaedia

Bickle I, Post renal transplant pseudoaneurysm. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-24089 • CC by-nc-sa 3.0 (modified)

False

aneurysm • Radial artery pseudoaneurysm - Ganzer Fall bei Radiopaedia

Hapugoda S, Radial artery pseudoaneurysm. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-50660 • CC by-nc-sa 3.0 (modified)

Pseudoaneurysm

of the common carotid: an unusual complication of behcet"s disease. Ultrasound colour Doppler confirm the presence of a pseudoaneurysm of the common left carotid with a biphasic flow

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Pseudoaneurysm

of the common carotid: an unusual complication of behcet"s disease. CT Angiogram and CT neck showing pseudoanévrysm of CCM

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Pseudoaneurysm

of the common carotid: an unusual complication of behcet"s disease. VRT CT demontrating the pseudoaneurysm

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Pseudoaneurysm

of the common carotid: an unusual complication of behcet"s disease. Communication between CCA and pseudoaneurysm.

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Pseudoaneurysm

of the common carotid: an unusual complication of behcet"s disease. Contrast-enhanced CT angiogram demonstrating a 7 ×7 cm sized pseudoaneurysm at the left common carotid with mass effect on the trachea and adjacent vascular structures.

www.eurorad.org • CC by-nc-sa-4.0

False

aneurysm • Renal arterial pseudoaneurysm - Ganzer Fall bei Radiopaedia

, Renal arterial pseudoaneurysm. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://radiopaedia.org/cases/37879 • CC by-nc-sa 3.0 (modified)

False

aneurysm • Anterior tibial artery false aneurysm - Ganzer Fall bei Radiopaedia

Knipe H, Anterior tibial artery false aneurysm. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-88984 • CC by-nc-sa 3.0 (modified)

A bloody

cough. (Axial image, vascular windows). Hypertrophied right systemic (solid white arrows) and bronchial arteries (white arrow, black border) which can be compared to the normal arterial tree on the left side of the chest.

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False

aneurysm • Subclavian artery pseudoaneurysm - Ganzer Fall bei Radiopaedia

Saber M, Subclavian artery pseudoaneurysm. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-93344 • CC by-nc-sa 3.0 (modified)

False

aneurysm • Popliteal artery pseudoaneurysm - Ganzer Fall bei Radiopaedia

Ashraf A, Popliteal artery pseudoaneurysm. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-94916 • CC by-nc-sa 3.0 (modified)

False

aneurysm • Ulnar artery pseudoaneurysm - Ganzer Fall bei Radiopaedia

Shaggah M, Ulnar artery pseudoaneurysm. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-97131 • CC by-nc-sa 3.0 (modified)

False

aneurysm • Pulmonary artery pseudoaneurysm and mucormycosis - Ganzer Fall bei Radiopaedia

Karkoush B, Pulmonary artery pseudoaneurysm and mucormycosis. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-98093 • CC by-nc-sa 3.0 (modified)

False

aneurysm • External jugular vein pseudoaneurysm - Ganzer Fall bei Radiopaedia

Khedr D, External jugular vein pseudoaneurysm. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-147189 • CC by-nc-sa 3.0 (modified)

False

aneurysm • Gastroduodenal artery pseudoaneurysm - post traumatic - Ganzer Fall bei Radiopaedia

Hacking C, Gastroduodenal artery pseudoaneurysm - post traumatic. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-41274 • CC by-nc-sa 3.0 (modified)

A bloody

cough. (Sagittal plane, lung windows) Apical mycetoma (solid black arrow), Emphysematous changes (white arrows, black border).

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A bloody

cough. DSA. Catheter in origin of right internal mammary artery (solid black arrow). Angiogram shows hypertrophic, serpiginous systemic arterial branches (black arrow, white border) and rapid shunting into the pulmonary veins (white arrows, black border).

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False

aneurysm • Iatrogenic arterial pseudoaneurysm - Ganzer Fall bei Radiopaedia

Niknejad M, Iatrogenic arterial pseudoaneurysm. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-20782 • CC by-nc-sa 3.0 (modified)

Left

ventricular pseudoaneurysm • Left ventricular pseudoaneurysm - Ganzer Fall bei Radiopaedia

St-Amant M, Left ventricular pseudoaneurysm. Case study, Radiopaedia.org (Accessed on 04 Jan 2023) https://doi.org/10.53347/rID-18598 • CC by-nc-sa 3.0 (modified)

False

aneurysm • Enormous ascending aortic pseudoaneurysm - post aortic valve replacement - Ganzer Fall bei Radiopaedia

St-Amant M, Enormous ascending aortic pseudoaneurysm - post aortic valve replacement. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-20722 • CC by-nc-sa 3.0 (modified)

False

aneurysm • Common carotid arterial pseudoaneurysm - Ganzer Fall bei Radiopaedia

Niknejad M, Common carotid arterial pseudoaneurysm. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-20524 • CC by-nc-sa 3.0 (modified)

False

aneurysm • Hepatic artery pseudoaneurysm coiling - Ganzer Fall bei Radiopaedia

Desai P, Hepatic artery pseudoaneurysm coiling. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-20102 • CC by-nc-sa 3.0 (modified)

False

aneurysm • Pseudoaneurysm of the profunda femoral artery - Ganzer Fall bei Radiopaedia

Hsu C, Pseudoaneurysm of the profunda femoral artery. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-19203 • CC by-nc-sa 3.0 (modified)

False

aneurysm • Post-catheterization pseudoaneurysm involving the femoral artery - Ganzer Fall bei Radiopaedia

Illustrations G, Post-catheterization pseudoaneurysm involving the femoral artery. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-18301 • CC by-nc-sa 3.0 (modified)

False

aneurysm • Common femoral artery pseudoaneurysm - Ganzer Fall bei Radiopaedia

Bashir O, Common femoral artery pseudoaneurysm. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-18588 • CC by-nc-sa 3.0 (modified)

False

aneurysm • Carotid pseudoaneurysm - Ganzer Fall bei Radiopaedia

Sharma M, Carotid pseudoaneurysm. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-11037 • CC by-nc-sa 3.0 (modified)

A bloody

cough. Catheter in origin of intercostal artery (solid black arrow). Demonstrates hypertrophic, serpiginous arteries (black arrow, white border).

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False

aneurysm • False aneurysm of the radial artery - Ganzer Fall bei Radiopaedia

Hall M, False aneurysm of the radial artery. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-33699 • CC by-nc-sa 3.0 (modified)

Lower

gastrointestinal bleeding • Lower gastro-intestinal hemorrhage - Ganzer Fall bei Radiopaedia

Conditions, R. Lower gastro-intestinal hemorrhage. Case study, Radiopaedia.org. (accessed on 07 Nov 2022) https://doi.org/10.53347/rID-30236 • CC by-nc-sa 3.0 (modified)

False

aneurysm • Traumatic abdominal aortic false aneurysm - Ganzer Fall bei Radiopaedia

Lawson A, Traumatic abdominal aortic false aneurysm. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-25627 • CC by-nc-sa 3.0 (modified)

False

aneurysm • Gastroduodenal artery pseudoaneurysm - Ganzer Fall bei Radiopaedia

Desai P, Gastroduodenal artery pseudoaneurysm. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-5797 • CC by-nc-sa 3.0 (modified)

False

aneurysm • Aneurysm (illustrations) - Ganzer Fall bei Radiopaedia

Hapugoda S, Aneurysm (illustrations). Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-52473 • CC by-nc-sa 3.0 (modified)

False

aneurysm • Pseudoaneurysm - Ganzer Fall bei Radiopaedia

Bashir O, Pseudoaneurysm. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-17030 • CC by-nc-sa 3.0 (modified)

False

aneurysm • Common carotid pseudoaneurysm - Ganzer Fall bei Radiopaedia

Desai P, Common carotid pseudoaneurysm. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-6827 • CC by-nc-sa 3.0 (modified)

A bloody

cough. Catheter in origin of intercostal artery (solid black arrow). Demonstrates hypertrophic, serpiginous arteries (black arrow, white border) and rapid shunting into the pulmonary veins (white arrows, black border).

www.eurorad.org • CC by-nc-sa-4.0

False

aneurysm • Iatrogenic internal mammary artery pseudoaneurysm - Ganzer Fall bei Radiopaedia

Ashraf A, Iatrogenic internal mammary artery pseudoaneurysm. Case study, Radiopaedia.org (Accessed on 20 Jan 2023) https://doi.org/10.53347/rID-84947 • CC by-nc-sa 3.0 (modified)

Radiopaedia • CC-by-nc-sa 3.0 • de

False aneurysms, also known as pseudoaneurysms, are abnormal outpouchings or dilatation of arteries which are bounded only by the tunica adventitia, the outermost layer of the arterial wall. These are distinguished from true aneurysms, which are bounded by all three layers of the arterial wall. Pseudoaneurysms typically occur when there is a breach in the vessel wall such that blood leaks through the inner wall but is contained by the adventitia or surrounding perivascular soft tissue.

Pathology

Etiology

trauma (dissection or laceration)
iatrogenic (dissection, laceration or puncture)
- arterial catheterization - accounts for most iatrogenic pseudoaneurysms
- biopsy, surgery
spontaneous dissection
fibromuscular dysplasia (dissection)
mycotic aneurysm (inflammatory digestion of the vessel wall)
myocardial infarction (left ventricular false aneurysm)
regional inflammatory process
- acute pancreatitis
- chronic pancreatitis
vessel injury/erosion due to a tumor: relatively uncommon
vasculitides
penetrating atherosclerotic ulcer

Location

They can involve any arterial segment or even a cardiac chamber. Examples include

aortic pseudoaneurysm: traumatic aortic pseudoaneurysm
femoral artery pseudoaneurysm: relatively common site due to femoral punctures
carotid artery pseudoaneurysm
visceral arterial pseudoaneurysm
- hepatic arterial pseudoaneurysm
- gastroduodenal arterial pseudoaneurysm
- splenic arterial pseudoaneurysm
- peri-pancreatic pseudoaneurysm
- renal arterial pseudoaneurysm
peripheral arterial (limb) pseudoaneurysm
left ventricular pseudoaneurysm
brachiocephalic artery pseudoaneurysm

Radiographic features

Some of the imaging features may be dependent on location.

Ultrasound

Due to the turbulent forward and backward flow, a characteristic yin-yang sign may be seen on color flow while a "to and fro" pattern may be seen with pulsed Doppler.

CT

hypoattenuating (non-contrast) or hyperattenuating (contrast-enhanced) smooth-walled sac adjacent to an artery, usually with a communication

Treatment and prognosis

The risk of rupture is higher than that of a true aneurysm of comparable size due to poor support of the aneurysm wall and thus false aneurysms generally require treatment.