Lumbar Hernia
Michael P. Federle, MD, FACR
Amir A. Borhani, MD
Key Facts
Terminology
Abnormal protrusion of abdominal contents through defect in lumbar region
Common sites
Superior lumbar triangle of Grynfeltt-Lesshaft
Inferior lumbar triangle of Petit
Imaging
Disruption of thoracolumbar fascia at insertion of aponeurosis of internal oblique and transverse abdominal muscles
Hernia may contain extraperitoneal fat, colon, kidney, or intraperitoneal structures (small bowel, ascites)
Top Differential Diagnoses
Abdominal wall neoplasms
Abdominal wall hematoma
Heterogeneous high density collection
Pathology
Congenital (20%)
Acquired (80%)
Usually following flank incision for renal surgery
Clinical Issues
Incarceration and strangulation are uncommon because of large size of opening into herniaRelated posts:
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