J Korean Radiol Soc.
1995 Oct;33(4):545-549.
Traumatic Rupture of the Diaphragm: CT Findings
Abstract
- PURPOSE
The aim of this study was to assess the clinical utility of the known CT signs of the traumatic
rupture of the diaphragm.
MATERIALS AND METHODS
CT scans and chest radiographs were retrospectively reviewed in 13 patients who
had diaphragmatic rupture confirmed by surgery. On chest radiographs, the elevation of the diaphragm was
evaluated. On CT, 1) discontinuity of the diaphragm, 2) lack of depiction of the diaphragm surrounding the
herniated intraabdominal organs (absent diaphragm sign), and 3) fat seen lateral to the diaphragm (fat sign)
were evaluated.
RESULTS
Chest radiographs showed the elevation of the diaphragm in 11 patients (85%). CT scan showed
absent diaphragm sign in 11 patients (85%), discontinuity of the diaphragm in 8 (62%), and fat sign in 7 (54%).
All of 12 patients who had the left diaphragmatic rupture had one or more of the above findings.
CONCLUSION
Discontinuity of the diaphragm, absent diaphragm sign, and fat sign may be helpful CT findings
in the diagnosis of the traumatic rupture of the left diaphragm.