[Subphrenic adipose tissue, an infrequent cause of increased distance between the diaphragm and liver. Radiological study and echographic comparison].

Nine obese patients (4M/5F) showing on a standard chest-X-ray a right subdiaphragmatic radiolucent area were submitted to ecography. This method excluded pathologic causes and showed adipose tissue as the cause of the increased distance between diaphragm and liver. Besides, ecography showed some limits in the evaluation of adipose area, because of the difficulty in studying obese patients.