[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. Pseudoparathyreotic conditions are to be differed from actual pictures of the disease only in typical expression. In the paraneoplastic syndromes appearing within this boundary only the proof of a malignoma allows a secure demarcation. On account of the often uncharacteristic X-ray picture, the variable symptomatology and the in many cases lacking directive paraclinical findings practically all pathological bone processes which are based on deviations in the calcium and phosphate metabolism are to be included in differential-diagnostic considerations.