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Radiological images of retroperitoneal dedifferentiated liposarcoma: a rare case report

  • Kadek Ogi Junaedi ,
  • Elysanti Dwi Martadiani ,
  • Dewa Gde Mahiswara Suadiatmika ,


Background: Retroperitoneal liposarcoma is a rare tumor with an incidence of 2.5 per 1 million individuals. This tumor usually occurs at the age of 50-70 years, although incidents in children have been reported. Imaging techniques such as Magnetic Resonance Imaging (MRI) and Computed Tomography (CT) play an important role in the diagnosis and follow-up of retroperitoneal liposarcoma. To date, only a few cases of differentiated retroperitoneal liposarcoma have been reported. Therefore, the author wants to explain cases of differentiated retroperitoneal liposarcoma, in this case accompanied by recurrence.

Case Report: A male 64-year-old patient complained of a lump appearing in his stomach. The lump in the stomach has appeared since the beginning of 2019. The first CT-Scan of the Abdomen without and with Contrast showed a left retroperitoneal mass with a cystic-solid-fat complex component, with internal septation, suspicious for microcalcification, which was attached to the nearby fascia and was pushing the left retroperitoneum organ to the right midline. The patient has undergone tumor resection, where in this patient the histopathological examination results showed a Malignant Mesenchymal Tumor, tending to Dedifferentiated Liposarcoma. A recurrence was reported after the surgery. The patient underwent another laparotomy surgery to resect the tumor. From the results of the last control, the patient's condition is still stable and from the results of abdominal MRI with the results there is no visible residive nor residual mass in the retroperitoneum or intraperitoneum.

Conclusion: Retroperitoneal liposarcoma is usually asymptomatic until the liposarcoma is large enough to press on the surrounding organs. It is often misdiagnosed due to its rarity and absence of symptoms. However, imaging techniques such as MRI and CT play an important role in the diagnosis and follow-up of retroperitoneal liposarcoma.


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How to Cite

Junaedi, K. O., Martadiani, E. D. ., & Suadiatmika, D. G. M. . (2024). Radiological images of retroperitoneal dedifferentiated liposarcoma: a rare case report. Intisari Sains Medis, 15(1), 426–429.




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Kadek Ogi Junaedi
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ISM Journal

Elysanti Dwi Martadiani
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Dewa Gde Mahiswara Suadiatmika
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