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Recurrent massive myxoid liposarcoma in retroperitoneum 10 years post initial operation
Takamasa Horiuchi1,2, Shigekatsu Maekawa1,3, Wataru Obara3
1Department of Urology The University of Tokyo Tokyo Japan.
IJU Case Reports
|August 4, 2020
Summary
This case study highlights a rare instance of massive myxoid liposarcoma recurrence 10 years post-surgery. Lifelong cautious follow-up is crucial for patients with this rare soft tissue sarcoma.
Area of Science:
- Oncology
- Surgical Pathology
- Soft Tissue Sarcomas
Background:
- Myxoid liposarcoma typically presents with a favorable prognosis.
- Annual follow-up is generally recommended starting five years post-surgery.
Observation:
- A 48-year-old male presented with a massive retroperitoneal tumor (20 cm).
- This was a recurrence of a 14 kg myxoid liposarcoma resected 10 years prior.
- A 3.6 kg recurrent tumor was surgically removed from the right kidney.
Findings:
- Pathological examination confirmed recurrent myxoid liposarcoma.
- No further recurrence or metastasis was observed post-resection.
- This case represents the first report of massive initial and recurrent tumors with a 10-year recurrence interval.
Implications:
- Extended and vigilant lifelong surveillance may be necessary for myxoid liposarcoma patients.
- This case challenges current follow-up guidelines for myxoid liposarcoma.
- Highlights the importance of considering late recurrences in massive soft tissue tumors.
