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Endosc Ultrasound. 2017 Mar-Apr;6(2):90-102. doi: 10.4103/2303-9027.204816.

Endoscopic ultrasound of peritoneal spaces.

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Department of Gastroenterology, Jaswant Rai Speciality Hospital, Meerut, Uttar Pradesh, India.
Department of Gastroenterology, MOSCMMH, Kolenchery, Ernakulam, Kerala, India.
Department of Anatomy, Muzaffarnagar Medical College, Muzaffarnagar, Uttar Pradesh, India.
Mount Sinai Elmhurst Hospital Center, NY, USA.
Bayonne Medical Center, Bayonne, NJ 07002, USA.


The peritoneal cavity is subdivided into supracolic and infracolic compartments by transverse colon and its mesocolon. The supracolic compartment contains the liver, spleen, stomach, and lesser omentum. The infracolic compartment contains the coils of small bowel surrounded by ascending, transverse, and descending colon and the paracolic gutters. The imaging of different compartments is possible by various methods such as ultrasound (US) and computerized tomography. The treating physicians should be familiar with the relevant radiological anatomy of different compartments and spaces as accurate localization of fluid collection/lymph node in peritoneal cavity greatly aids in selection of a treatment strategy. The role of endoscopic US (EUS) is emerging for detail evaluation of all parts of peritoneal cavity as it provides an easy access for fine-needle aspiration from different compartments of peritoneal cavity. In this review, we describe the techniques of evaluation of different parts of supracolic compartments of peritoneum by EUS.

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