[Practice-oriented method of cholangiography].

The authors present their methodology of cholegraphy which was tested in practical routine work under in most cases examination conditions of an outpatient department with orientation to optimized relations between expense, risk and utility. The peculiarities of the methodical and tactical procedure are described in detail. A radiological representation of the biliary system should be performed only when there is no possibility to sonography and when there are discrepancies between its result and clinical picture, respectively.

[Comparative consideration of the diagnostic capacity and risks of various roentgenologic methods in the complex diagnosis of malignant bronchial obstructive diseases].

Basing on own experience and literature reviews the significance and hazards of the various diagnostic methods in bronchial carcinoma are discussed. In routine programmes bronchography should be given up for therapeutic decision finding. Tomography and mediastinoscopy usually allow to make clear the disease pattern without increasing essentially the risk of a following surgical intervention.

[Statistical studies on the clinical importance of the "upper calix syndrome"].

Urographical examinations of 290 patients prove a statistically ascertained favouring influence of the "syndrome of the upper calyx" on the development of inflammatory changes of the kidney. Therefore the regular clinical control of patients with dysplasias of the upper group of the calyx, Fraley-syndrome and strictures of the calyx neck is demanded.

[Radiologic aspects of osteopathy in parathyroid gland diseases and their differential diagnosis].

The different disturbances of these organs resulting from the relative endocrine autonomy of the parathyroid glands obtain a manifold symptomatology often with an only later diagnosing. In increased activity of the parathyroid glands hypercalcaemia as well as generalized osteodystrophy are indicating the target in combination with subperiostal resorptions of the corticalis at the phalanges. As a rule underfunction distinguishes itself by hypocalcaemia, hyperphosphataemia and osteoscleroses due to increased mineral fixation in bones.