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Updated: Jun 26, 2025

Culture and Imaging of Ex Vivo Organotypic Pseudomyxoma Peritonei Tumor Slices from Resected Human Tumor Specimens
Published on: December 9, 2022
Recurrence and metastasis of pseudomyxoma peritonei: A rare case report
1Department of Radiology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), NO. 19, Xiuhua St, Xiuying Dic, Haikou, Hainan 570311, PR China.
Abstract:
Pseudomyxoma peritonei (PMP) is a relatively uncommon condition primarily associated with neoplasms of the appendiceal epithelium. It is characterized by non-specific clinical manifestations, leading to a high rate of misdiagnosis. This report describes the case of a 62-year-old male patient with recurrent and metastatic PMP. The patient first experienced unexplained epigastric pain and paroxysmal abdominal pain accompanied by distension over 8 years ago. He underwent surgical interventions for the condition in other hospitals in 2015 and 2018, respectively.
Insights
Pseudomyxoma peritonei (PMP) is a rare appendiceal neoplasm often misdiagnosed due to vague symptoms. This case highlights recurrent metastatic PMP in a 62-year-old male with a history of abdominal pain and prior surgeries.
Area of Science:
- Oncology
- Gastroenterology
- Abdominal Surgery
Background:
- Pseudomyxoma peritonei (PMP) is a rare malignancy originating from appendiceal epithelium.
- PMP presents with non-specific symptoms, frequently leading to diagnostic challenges and delayed treatment.
- Appendiceal neoplasms are the primary driver of PMP, necessitating specialized oncologic and surgical management.
Observation:
- A 62-year-old male presented with a history of unexplained epigastric and paroxysmal abdominal pain with distension spanning over eight years.
- The patient underwent multiple surgical interventions in 2015 and 2018 for his condition.
- This case involves recurrent and metastatic PMP, underscoring the complex nature of the disease.
Findings:
- The diagnostic delay in PMP is often attributed to its insidious onset and nonspecific clinical presentation.
- Recurrence and metastasis highlight the aggressive potential of PMP even after surgical intervention.
- Accurate diagnosis and timely management are crucial for improving outcomes in PMP patients.
Implications:
- This case emphasizes the importance of considering PMP in patients with persistent, unexplained abdominal symptoms, especially with a history of appendiceal issues.
- Improved diagnostic strategies and multidisciplinary treatment approaches are needed to enhance PMP patient survival rates.
- Further research into the molecular mechanisms and optimal therapeutic targets for PMP is warranted to address its challenging clinical behavior.

