Lumbocostal triangle

Lumbocostal triangle (also known as Bochdalek's triangle) is an anatomical space in the posterior wall of the thorax. It is named after the Czech anatomist, Vincenz Alexander Bochdalek, who first described it in 1848.

Etymology

The term "lumbocostal" is derived from the Latin words "lumbus" meaning loin and "costa" meaning rib. The term "Bochdalek's triangle" is named after Vincenz Alexander Bochdalek, a Czech anatomist who first described this anatomical space.

Anatomy

The lumbocostal triangle is bordered by the 12th rib (also known as the floating rib) inferiorly, the erector spinae muscle posteriorly, and the diaphragm superiorly. It is one of the two potential weak points in the diaphragm where a congenital diaphragmatic hernia can occur, the other being the Morgagni's triangle.

Clinical significance

The lumbocostal triangle is clinically significant as it is a potential site for the occurrence of a Bochdalek hernia, a type of congenital diaphragmatic hernia. This condition is characterized by the protrusion of abdominal contents into the thorax through a defect in the diaphragm, leading to respiratory distress in newborns.

Related terms

• Bochdalek hernia: A type of congenital diaphragmatic hernia that occurs through the lumbocostal triangle.
• Morgagni's triangle: Another potential weak point in the diaphragm where a congenital diaphragmatic hernia can occur.
• Congenital diaphragmatic hernia: A birth defect of the diaphragm that allows the abdominal organs to push into the chest cavity.

See also

• Diaphragm (anatomy)
• Congenital disorders
• Hernia

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Lumbocostal Triangle

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