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Biomedical subjects

G von Klinggräff

Publications and source records attributed to G von Klinggräff.

8 recordsLinked to original sources

[Sonographic detection of kidney infarctions using ultrasound contrast media].

UNLABELLED: Contrast-enhanced CT is currently the gold standard for the diagnosis of kidney infarction. Particularly in patients with renal insufficiency, however, the use of iodine contrast media is limited. Sonographic examination using ultrasound contrast media may be an alternative for these patients. CASE REPORTS: We examined three patients with suspected ischaemic kidney infarction with ultrasound contrast media. Scanning was performed with low mechanical index, and SonoVue was used as by contrast-enhancing agent. In all three patients, kidney infarctions were clearly shown. In two patients, the lesions were confirmed by contrast-enhanced CT, in one no CT was performed because of impaired renal function. CONCLUSION: Kidney infarctions can reliably be detected by contrast-enhanced ultrasound using SonoVue as contrast agent. This is particularly valuable in patients with renal impaired renal function and other contraindications against iodine contrast media.

Aged↗

[Inflammatory aneurysms of the abdominal aorta].

The so-called "inflammatory" aneurysm of the aorta of the abdominal wall is a special form of the arteriosclerotic aneurysm of the aorta observed in 5-15% of the abdominal aorta aneurysms. It is characterized by more or less marked periaortal fibrotization. The pathological correlate is represented by lymphocytous and plasmacellular infiltrates that are mainly seen and identified in the region of the adventitia. The etiology has not yet been clarified. Since surgery of the inflammatory aneurysm of the abdominal wall aorta is rendered difficult due to neighbouring organs (e.g. ureters) becoming callous and adhesive, safe preoperative diagnosis is desirable. Suspicion of an aneurysm of the abdominal wall can be fairly safely confirmed by sonography. In case of a partially thrombotic aneurysm a characteristic fourfold stratification can be seen: free lumen/thrombus/calcified wall of aorta/law-echo outer layer. This last-named layer--the "inflammatory" portion--is tapelike, semicircular and more or less strongly developed. The inflammatory aneurysm of the abdominal wall is often symptomatic. Hence, the most important differential diagnosis concerns the covered perforation and the dissecting aortic aneurysm, as well as Ormond's disease, periaortal lymphomas and other retroperitoneal tumours.

Aorta, Abdominal↗

[Highly differentiated primary liver cell carcinoma. 2 case reports].

The hepatocellular carcinoma (HCC) is the most frequently occurring primary hepatic tumour. Particular difficulties in diagnosis are encountered with the highly differentiated carcinoma. The imaging processes are of varying rank. Sonography and CT--and with some restrictions also scintigraphy--can represent focal findings in the liver with the highest degree of safety. With the highly differentiated tumour, angiography is less helpful, since it does not supply safe criteria of malignancy. Alpha-fetoprotein (AFP) is not a reliable parameter in case of a small highly differentiated carcinoma. Nevertheless, cirrhosis patients with the greatest risk factor (HBV, haemochromatosis and long-standing alcohol-conditioned cirrhosis of many years) should be followed up and controlled by sonography and AFP determination every 6 months.

Aged↗