Diaphragmatic hernia other imaging findings

Diaphragmatic hernia Main page
Patient Information
Overview
Historical Perspective
Classification
Pathophysiology
Differentiating Diaphragmatic hernia from other Diseases
Epidemiology
Risk factors
Screening
Natural History, Complications and Prognosis
Diagnosis
History and Symptoms
Physical Examination
Laboratory Findings
Radiological tests
Treatment
Medical treatment
Surgical treatment

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Ahmed Younes M.B.B.CH [2]

Overview

CDH can be diagnosed using antenatal ultrasound during the 24th week of gestation. The presence of liver herniation and decreased lung area to head circumference are bad prognostic signs.

Antenatal ultrasound

• CDH can be diagnosed in the 24th week.
• In addition to the hernia, ultrasound can show polyhydramnios and absence of the gastric air bubble
• Left sided CDH is far more common than right sided CDH, while bilateral CDH is rare.
• The presence of liver herniation is associated with worse prognosis and survival.
• The estimation of lung area to head circumference ratio can give an idea about the prognosis (especially if there is no liver herniation). The lower the ratio, the worse the prognosis.

Coronal ultrasound showing herniation of the abdominal content into the thorax and displacement of the herat to the right - Case courtesy of Dr Laughlin Dawes , Radiopaedia.org, rID: 36006