[Accidental finding of a giant retroperitoneal lipoma in a traumatic rupture of the renal parenchyma].

With a rate of 0.1-3% of all tumour cases primary retroperitoneal neoplasms are very rare. Malignant tumours predominate.

[Case examples of rare locations of aneurysms].

We describe four cases of rare aneurysm localisations, one case of an aneurysm of the hepatic artery, two cases of aneurysms of the superior mesenteric artery and its branches and, as an extreme rarity, one case of an aneurysm of the superior gluteal artery (only three known cases up to now). All cases were documented by arteriography/DSA, ultrasonography and computed tomography. We refer to incidence, aetiology, symptomatology, and possible complications as indicated by literature.

[Advantages of computerized tomography diagnosis in acetabular fractures].

There is a comparison of conventional radiographs and computed tomography in 23 patients presenting acetabular fracture. Four patients were treated conservatively because of their CT-findings. The result was successful.

[On the aetiology of malignant pericardial mesothelioma (author's transl)].

Two cases of malignant pericardial mesothelioma are described. Morphologically they corresponded to the epithelial or fibrous type, respectively. In one patient, an old-metal dealer, an increased number of asbestos bodies were found in the lung parenchyma and phase-microscopy demonstrated increased asbestos needles in the lung parenchyma.