An 87-year-old woman presented with a painful left groin bulge. Because the bulge was mostly below a line drawn between the anterior superior iliac spine and the pubic tubercle, a diagnosis of femoral heria was made. A gentle attempt at reduction was unsuccessful.
The femoral canal lies within the femoral sheath surrounding the femoral vessels. The femoral sheath is a continuation of the transversalis fascia beneath the inguinal ligament (see inguinal anatomy). The back wall of the femoral canal is the fascia of the pectineus muscle. The pectineus muscle originates at the pectineal ridge of the pubis. The femoral canal normally contains lymphatics from the lower extremity.
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When the femoral canal becomes dilated, abdominal organs can protrude. Femoral hernias are more common in women than in men, but are still less common than inguinal hernia in both. Because of the tight, narrow femoral canal, femoral hernias are prone to incarcerate and strangulate contents.
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