[Cystic adventitional degeneration of the popliteal artery: preoperative diagnosis using imaging technics]. / Zystische Adventitiadegeneration der Arteria poplitea: präoperative Diagnostik mittels bildgebender Verfahren.

The presented case of cystic adventitial disease of the popliteal artery as a rare cause of intermittent claudication shows the value of modern imaging in establishing the preoperative diagnosis. Besides the characteristics of real-time ultrasound and computerised tomography, the results of angiography and especially functional angiography are discussed and their value towards differential diagnosis is pointed out.

[Arteriovenous fistula of the kidney--angiography case descriptions]. / Arteriovenöse Kurzschlussverbindungen in der Niere--Angiographische Fallbeschreibungen.

Individual case reports serve to demonstrate the pathogenetically different renal arteriovenous shunt formations, such as congenital arteriovenous angioma, spontaneous arteriovenous aneurysm, iatrogenic arterio-venous fistula and neoplasia-conditioned arteriovenous fistula. These are discussed in detail, including treatment possibilities. The ranking of digital subtraction angiography is emphasised. Our case reports show that in preoperative diagnosis of pathological structures in the kidney, renovasography is an invaluable tool, especially with i.a. DSA technique, and is superior to all other methods such as sonography, CT, MR and colour-coded Doppler sonography. Due to improved techniques of angiography (markedly lower amounts of contrast medium when using catheters of narrow lumen) indication for i.a. DSA in haematuria of unknown origin should be liberal. Above all, the method should be performed at an early stage. If there is a NAD renal finding in the i.a. DSA renovasogram in renally conditioned haematuria even when using a 1024 x 1024 image matrix, it is advisable to perform selective renal arteriography to either exclude or confirm the existence of an intrarenal angioma, additionally in conventional sheet film technique because of the superior power of resolution.

[The "hepatoceliac collateral" in complete hepatomesenteric trunk--a first angiography observation]. / Die "hepato-zöliakle Kollaterale" beim kompletten Truncus hepato-mesentericus--Eine angiographische Erstbeobachtung.

In the example presented here we determined a complex anomaly of the large arterial vessels of the upper abdomen in combination with an intrahepatic vascular malformation (partially thrombosed haemangioma), this identification having become possible by superselective arteriography. There were two anastomoses of considerable calibre besides a complete truncus hepatomesentericus. We named one of these "hepato-coeliacal collateral". This collateral is now being described for the first time in literature and is demonstrated via angiography. Taking into account the embryogenesis of the visceral arteries and the organogenesis of the upper abdominal organs, we offer an interpretation of the development possibilities of the "hepato-coeliacal collateral".