[Intrathoracic kidney in childhood with special reference to secondary renal transport in Bochdalek's hernia].

Three cases of thoracic renal ectopia are described. Remarkable is the case of an "acquired" congenital right diaphragmatic hernia (Bochdalek's herniation) with previously normally positioned kidneys. Classification is as follows: 1. real thoracic ectopia with normally developed closed diaphragm, 2. eventration of the diaphragm (relaxatio diaphragmatica), 3. diaphragmatic hernia: a) congenital diaphragmatic defects, b) acquired herniation (Bochdalek's). 4. traumatic rupture of the diaphragm with renal ectopia.