Falciform ligament sign - pneumoperitoneum

Case contributed by Mohammad Taghi Niknejad
Diagnosis certain

Presentation

Acute abdominal pain and progressive distension.

Patient Data

Age: 45 years
Gender: Female

Pneumoperitoneum on the supine abdominal radiograph.

A linear density is evident on the ventral surface of the liver, known as the falciform ligament sign.

Annotated image

A linear density is evident on the ventral surface of the liver (arrow), known as the falciform ligament sign, a sign of large amount of pneumoperitoneum. 

Case Discussion

The falciform ligament sign, also called the Silver sign, is characterized by the falciform ligament being outlined with free abdominal gas in cases of pneumoperitoneum of a large amount.

A case of Prof. Saeed Rad, Tabriz, Iran.

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