Fig. 4From: Incarcerated obturator hernia: pitfalls in the application of ultrasoundUltrasonogram of a femoral hernia. Incarcerated femoral hernia () is delineated anterior to the pectineus muscle (arrows). The femoral canal (the hernia orifice) is indicated by a broad arrow. Accumulated fluid surrounding the hernia contents is seen in the hernia sacBack to article page