Short answer · Medically reviewed summary · Last updated: 2026-05-08
Pseudomyxoma peritonei (PMP) is a rare clinical condition characterized by the accumulation of mucinous ascites within the abdominal cavity, most commonly originating from a ruptured appendiceal tumor. It is frequently referred to as "jelly belly" in patient communities, though medical professionals prefer the formal term Pseudomyxoma peritonei to describe this complex neoplastic process. What are the common synonyms and historical names for Pseudomyxoma peritonei? Because Pseudomyxoma peritonei is a rare diagnosis, it has historically been described by various terms reflecting its clinical presentation.
Pseudomyxoma Peritonei synonyms
Other names for Pseudomyxoma Peritonei: synonyms, acronyms and related terms used by doctors and patients.
Pseudomyxoma peritonei (PMP) is a rare clinical condition characterized by the accumulation of mucinous ascites within the abdominal cavity, most commonly originating from a ruptured appendiceal tumor. It is frequently referred to as "jelly belly" in patient communities, though medical professionals prefer the formal term Pseudomyxoma peritonei to describe this complex neoplastic process.
What are the common synonyms and historical names for Pseudomyxoma peritonei?
Because Pseudomyxoma peritonei is a rare diagnosis, it has historically been described by various terms reflecting its clinical presentation. Older medical literature may refer to it as "mucoid ascites" or "gelatinous ascites." In international clinical settings, you may encounter the abbreviation PMP. While "jelly belly" is a common colloquialism used by the 110 members of our DiseaseMaps.org community, it is not a clinical term used in pathology reports or official medical coding.
Why does Pseudomyxoma peritonei have multiple names?
The naming of Pseudomyxoma peritonei has evolved alongside our understanding of its pathology. Historically, it was thought to be a primary ovarian condition, leading to the term "pseudomyxoma of the ovary." However, modern research confirms that Pseudomyxoma peritonei almost exclusively originates from the appendix. The transition from older descriptive terms to the current nomenclature reflects the global medical consensus to classify the condition based on its primary tumor site rather than its secondary peritoneal manifestations.
How is Pseudomyxoma peritonei classified in medical systems?
Standardized medical databases use specific coding to ensure accurate tracking of Pseudomyxoma peritonei. The following classification systems are the gold standard for clinicians:
- Orphanet: ORPHA:758
- ICD-10: C48.2 (Malignant neoplasm of peritoneum, unspecified)
- ICD-11: 2C90.Y (Other specified malignant neoplasms of peritoneum)
- OMIM: While PMP is a clinical manifestation, it is often studied under appendiceal cancer registries.
Which name should patients use when communicating with doctors?
When discussing your health with oncology or surgical teams, always use the term Pseudomyxoma peritonei. This ensures your medical records align with current international oncology standards and facilitates access to specialized treatment protocols, such as cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (HIPEC).
Next steps
- Consult with a surgical oncologist who specializes in peritoneal surface malignancies.
- Join the 110 members on DiseaseMaps.org to share experiences and find peer support.
- Request a pathology review at a high-volume center to confirm the histological subtype of your Pseudomyxoma peritonei.
Medical disclaimer: This information is for educational purposes only and does not replace professional medical advice, diagnosis, or treatment.
References
- NIH Genetic and Rare Diseases Information Center (GARD): Pseudomyxoma peritonei
- Orphanet: Rare Disease Database (ORPHA:758)
- National Cancer Institute (NCI): Peritoneal Mesothelioma and Mucinous Tumors
- Pseudomyxoma Survivor (Patient Advocacy Organization)
