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Surgical Endoscopy
Published in: Surgical Endoscopy 4/2004

01-04-2004 | Original article

Suprapancreatic and periportal lymph nodes are normally larger than 1 cm by laparoscopic ultrasound evaluation

Authors: A. J. Koler, M. C. Lilly, M. E. Arregui

Published in: Surgical Endoscopy | Issue 4/2004

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Abstract

Background

Laparoscopic and endoscopic ultrasound is used to assess resectability of gastrointestinal malignancies. Lymph node size greater than 1 cm is a criterion used to identify suspicious nodes. We define size and echo characteristics of suprapancreatic and periportal nodes to determine if this criterion is reliable for suprapancreatic and periportal lymph nodes.

Methods

A prospective study of 21 patients with nonacute gallbladder disease was performed. Each underwent laparoscopic cholecystectomy with intraoperative ultrasound. The suprapancreatic and periportal nodes were evaluated in a transverse and longitudinal axis. Length and width measurements were taken in both orientations. Length-to-width ratios were calculated. Shape and echo textures were characterized.

Results

The mean size of both nodes was greater than 1 cm in the transverse and longitudinal orientation. Two nodes were “round.” Remaining nodes were “oblong.” All nodes had a hyperechoic center with a hypoechoic rim.

Conclusion

In suprapancreatic and periportal lymph nodes, size greater than 1 cm should not be used as criterion for malignancy.
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Metadata
Title
Suprapancreatic and periportal lymph nodes are normally larger than 1 cm by laparoscopic ultrasound evaluation
Authors
A. J. Koler
M. C. Lilly
M. E. Arregui
Publication date
01-04-2004
Publisher
Springer-Verlag
Published in
Surgical Endoscopy / Issue 4/2004
Print ISSN: 0930-2794
Electronic ISSN: 1432-2218
DOI
https://doi.org/10.1007/s00464-003-8123-z

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