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The microscopic anatomy of the liver is a complex and intricate system that comprises numerous structural units known as liver lobules, each of which is comparable in size to a sesame seed. These hexagonal structures consist of plates of liver cells or hepatocytes, which are characterized by their versatility and abundance of cellular apparatus like rough and smooth ER, Golgi apparatus, peroxisomes, and mitochondria.
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Liver scalloping: Pseudomyxoma peritonei liver compression.

K Allart1, C Sabbagh1, J-M Regimbeau2

  • 1Service de chirurgie digestive, centre hospitalier universtaire Amiens, avenue René-Laennec, 80054 Amiens cedex 01, France; Université Picardie-Jules-Verne, 1, chemin du Thil, 80000 Amiens cedex 01, France.

Journal of Visceral Surgery
|December 8, 2018
PubMed
Summary

Pseudomyxoma peritonei is a rare condition where mucus spreads in the abdomen, often from an appendiceal mucocele rupture. Liver scalloping is a key sign, showing the liver indented by this gelatinous mucin.

Keywords:
CHIPMucocèlePeritoinePseudomyxomeScalloping

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Area of Science:

  • Oncology
  • Gastroenterology
  • Radiology

Background:

  • Pseudomyxoma peritonei is a rare neoplastic condition.
  • It typically originates from the rupture of an appendiceal mucocele.
  • Characterized by widespread peritoneal mucinous deposits.

Purpose of the Study:

  • To describe the imaging characteristics of pseudomyxoma peritonei.
  • To highlight the significance of liver scalloping as a diagnostic sign.

Main Methods:

  • Review of imaging findings in patients with pseudomyxoma peritonei.
  • Correlation of imaging features with pathological diagnosis.

Main Results:

  • Pseudomyxoma peritonei involves diffuse peritoneal dissemination of mucinous material.
  • Liver scalloping, an indentation of the liver surface, is a highly suggestive imaging finding.
  • This finding results from external compression by gelatinous mucin.

Conclusions:

  • Liver scalloping is a distinctive imaging manifestation of pseudomyxoma peritonei.
  • Recognition of this sign aids in the diagnosis of this rare condition.