[Intrathoracal tumor with accompanying hypoglycemia].

The number of the Doege-Potter-syndrome cases described above is less than one hundred. Even rarer are thoracic tumours with associated hypoglycaemia. The pathophysiologic mechanisms of the syndrome have not been fully elucidated as yet. There are also divergencies about the etiology of hypoglycaemia. Several hypotheses are under discussion. Even our observation shows the difficulty of discovering the genesis of tumour-conditioned hypoglycaemia.