Is Ultrasound-Guided Core Biopsy as Safe as Fine-Needle Aspiration, and Does It Add Significantly to the Diagnosis of Suspected Peritoneal Malignancy?

The use of the CB technique when performing US-guided percutaneous biopsy of peritoneal masses provides better tissue for diagnosis compared to FNA. Additional benefits of CB, including genomic testing and tumor subtyping, make this technique a good addition to FNA, without significant complications.