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Related Concept Videos

Peritoneum01:21

Peritoneum

12.8K
The peritoneum is a vital membrane that lines the abdominal cavity and covers most of the organs within it. It plays a crucial role in protecting the organs, providing a smooth surface for their movement, and facilitating various physiological processes. Understanding the anatomy and function of the peritoneum is essential for comprehending the complexities of the abdominal region.
Anatomy of the Peritoneum
The peritoneum is divided into two layers: the parietal peritoneum and the visceral...
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Appendicitis01:19

Appendicitis

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Appendicitis is an acute inflammatory condition of the vermiform appendix, most commonly caused by obstruction of its lumen. The appendix is a narrow, blind-ended pouch that extends from the cecum, making it particularly prone to obstruction. Causes include fecaliths, lymphoid hyperplasia (often after viral infections), parasites, tumors, or foreign bodies. This obstruction initiates a cascade of pathological changes.Luminal Obstruction and Early InflammationAfter obstruction, normal mucosal...
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Updated: May 2, 2026

Culture and Imaging of Ex Vivo Organotypic Pseudomyxoma Peritonei Tumor Slices from Resected Human Tumor Specimens
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Culture and Imaging of Ex Vivo Organotypic Pseudomyxoma Peritonei Tumor Slices from Resected Human Tumor Specimens

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Current concepts in pseudomyxoma peritonei.

Norman John Carr1

  • 1Peritoneal Malignancy Centre, Basingstoke and North Hampshire Hospital, Basingstoke, Southampton RG24 9NA, UK.

Annales De Pathologie
|March 18, 2014
PubMed
Summary

Pseudomyxoma peritonei (PMP) is a rare cancer characterized by mucin-secreting cells. Most PMP cases originate from the appendix, not the ovary, a significant update in understanding this disease.

Keywords:
Centres spécialisésGradeNetworkPseudomyxomaPseudomyxomeRéseauSpecialized centres

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Area of Science:

  • Oncology
  • Gastroenterology
  • Pathology

Background:

  • Pseudomyxoma peritonei (PMP) is a rare intra-abdominal malignancy.
  • It involves the growth of neoplastic mucin-secreting cells on peritoneal surfaces.
  • Disease distribution follows physiological principles, not random patterns.

Purpose of the Study:

  • To clarify the primary origin of pseudomyxoma peritonei.
  • To address the diagnostic confusion between ovarian and appendiceal mucinous neoplasms.
  • To highlight the need for standardized terminology and centralized management.

Main Methods:

  • Review of current clinical and pathological understanding of PMP.
  • Analysis of disease origin, focusing on appendiceal versus ovarian primary sites.
  • Discussion of prognostic factors and management strategies.

Main Results:

  • Pseudomyxoma peritonei predominantly originates from appendiceal neoplasms.
  • Ovarian lesions previously termed "borderline mucinous tumours" are often metastatic from the appendix.
  • Cellular grade is a key prognostic factor, but terminology lacks consensus.

Conclusions:

  • Pseudomyxoma peritonei is primarily an appendiceal disease.
  • Reclassification of certain ovarian mucinous tumours as appendiceal metastases is necessary.
  • Harmonizing terminology and concentrating PMP patient care in specialized centers are crucial.