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Recurrent paratesticular liposarcoma: a case report.

Walid Blaiech1, Mouna Ben Othmen1, Ines Ouahchi2

  • 1Department of Urology.

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Summary

Paratesticular liposarcoma (PTL) is a rare cancer. This case highlights a contralateral recurrence after treatment, emphasizing the need for vigilant long-term surveillance in PTL patients.

Keywords:
paratesticular liposarcomarare tumorrecurrencescrotal masses

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Area of Science:

  • Oncology
  • Surgical Pathology

Background:

  • Paratesticular liposarcoma (PTL) is an exceptionally rare malignant tumor originating from fat tissue.
  • Fewer than 200 cases of PTL have been reported globally, characterized by a high risk of recurrence.

Observation:

  • A 62-year-old male presented with a rapidly growing, painless right hemiscrotal swelling, initially suspected as two paratesticular tumors.
  • Histologic examination confirmed sclerosing, well-differentiated liposarcoma following radical orchidectomy.
  • A contralateral recurrence in the scrotum was detected via FDG-PET/CT scan after 12 months of follow-up.

Findings:

  • This case documents a rare contralateral recurrence of treated paratesticular liposarcoma.
  • The recurrence was identified 12 months post-treatment, underscoring the potential for late disease manifestation.
  • The current literature contains limited reports on recurrent paratesticular liposarcoma.

Implications:

  • The findings emphasize the critical need for long-term, vigilant follow-up in patients treated for paratesticular liposarcoma due to the risk of recurrence.
  • This case contributes to the scarce literature on recurrent PTL, aiding in understanding its behavior.
  • Enhanced diagnostic imaging, such as FDG-PET/CT, may play a role in detecting late or contralateral recurrences.