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Extraperitoneal presentation of pseudomyxoma peritonei as retroperitoneal invasion with skin fistula-a case report
Lu Chang-Yun1, Hsieh Mao-Chi, Yutaka Yonemura
1Dept. of General Surgery, Wang Fang Hospital, Taipei Medical University, Taiwan.
Abstract:
Pseudomyxoma peritonei (PMP) is characterized by mucinous ascites and implants throughout the peritoneal cavity. The tumor rarely involves retroperitoneum. We present a patient of PMP with retroperitoneal presentation and spontaneous development of a skin fistula. There had been only 7 such cases reported.
Insights
Pseudomyxoma peritonei (PMP) is a rare condition. This case highlights PMP presenting in the retroperitoneum with a spontaneous skin fistula, a very uncommon occurrence.
Area of Science:
- Oncology
- Gastroenterology
- Surgical Pathology
Background:
- Pseudomyxoma peritonei (PMP) typically presents with mucinous ascites and peritoneal implants.
- Retroperitoneal involvement is an exceptionally rare manifestation of PMP.
Observation:
- A unique case of PMP with a primary retroperitoneal presentation is described.
- The patient spontaneously developed a cutaneous fistula, a complication rarely associated with PMP.
Findings:
- This report details the eighth documented instance of PMP involving the retroperitoneum.
- The spontaneous development of a skin fistula in this context is a significant clinical observation.
Implications:
- This case expands the understanding of PMP's anatomical variations.
- It underscores the importance of considering rare presentations in the differential diagnosis of retroperitoneal masses and fistulas.
- Further investigation into the mechanisms of fistula formation in PMP may be warranted.
