Definition

Noun: * An anatomical space: The lesser peritoneal cavity, also known as the omental bursa, is a smaller, isolated compartment of the larger peritoneal cavity. It is located posterior to the stomach and the lesser omentum.

Usage

• The term lesser peritoneal cavity is used exclusively in anatomical and medical contexts to describe this specific body space.
• It is often discussed in relation to the spread of fluid, infection, or disease processes within the abdomen.

Examples

• During the surgery, the surgeon carefully explored the lesser peritoneal cavity for any signs of inflammation.
• Fluid collections in the lesser peritoneal cavity can sometimes be difficult to diagnose with standard imaging.
• The pancreas lies in a retroperitoneal position, directly posterior to the lesser peritoneal cavity.

Advanced Usage

• Clinical Relevance: The lesser peritoneal cavity can become sealed off from the main peritoneal cavity, which means infections or collections here may not be easily accessible or detectable.
• Surgical Access: Surgeons may need to enter the lesser peritoneal cavity through a natural opening called the epiploic foramen (foramen of Winslow).

Variants and Related Words

• Omental bursa: This is the direct synonym and more precise anatomical term for the lesser peritoneal cavity.
• Greater peritoneal cavity: The main, larger part of the peritoneal cavity, which is separate from but connected to the lesser peritoneal cavity via the epiploic foramen.
• Peritoneal cavity: The general term for the potential space within the abdomen that contains the abdominal organs.

Synonyms

• Omental bursa

Notes on Meaning

The definition emphasizes that this cavity is an isolated part and is situated dorsal to the stomach. This distinguishes it from the rest of the peritoneal space and specifies its precise anatomical location.

Noun

1. an isolated part of the peritoneal cavity that is dorsal to the stomach