Illustration of Lumbar Hernia

Lumbar hernia "hernia in the lumbar region" or may be called Bleichner's Hernia is quite uncommon as compared to other ventral abdominal wall hernias, 1.5% of all abdominal hernias. note that 25% of all lumbar hernias have a traumatic etiology.
These occur more commonly in males and are twice as common on the left than the right side. Patients are usually between 50 to 70 years old. These hernias can occur anywhere within the lumbar region but are more common through the superior lumbar triangle (of Grynfeltt-Lesshaft)

So, Lumbar hernia has 2 anatomical types:
1-Petit's hernia: a hernia through Petit's triangle (inferior lumbar triangle). It is named after French surgeon Jean Louis Petit (1674–1750).
2-Grynfeltt's hernia: a hernia through Grynfeltt-Lesshaft triangle (superior lumbar triangle). It is named after physician Joseph Grynfeltt (1840–1913).

**Patients with lumbar hernia are usually asymptomatic but may complain of backache, flank pain or a dragging sensation. These hernias have a natural history of a gradual increase in size over time.

Left lumbar hernia .

The differential considerations :
At this stage include the differential considerations includes lipoma, soft tissue tumors, hematoma or abscess.

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