Ectopic intrathoracic kidney

Case contributed by Professor Ali Hekmatnia


Patient presents with chronic respiratory symptoms and further evaluation of an incidentally noted right lung base opacity on a chest radiograph.

Patient Data

Age: 15 years
Gender: Female

Chest radiographs reveal an ill-defined radio-opacity in the lower part of the right hemithorax. 


MRI and MRU demonstrate the presence of an ectopic reniform structure in an intrathoracic location on the right side of posterior mediastinum with anatomically rotational anomalies of the right kidney and long ureter and high origin of renal vessels and medial deviation of lower pole of right kidney. Diaphragmatic herniation of bowel loops into the right hemithorax is noted too.

Case Discussion

Ectopic intrathoracic kidney is a rare clinical entity. Plain radiographs are often indeterminate and may confuse this condition with other posterior mediastinal lesions. It is noteworthy that in all cases the kidney is located in the throacic cavity and not in the pleural space with renal vessels and ureter typically exiting the thorax through the foramen of Bochdalek.

Case courtesy of Dr Fateme Hosseinabadi

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Case information

rID: 60241
Published: 14th May 2018
Last edited: 14th May 2018
Inclusion in quiz mode: Included
Institution: Isfahan University of Medical Sciences

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