Recurrent giant retroperitoneal dedifferentiated liposarcoma requiring challenging multiorgan resection: a case...

Area of Science:

• Oncology
• Surgical Pathology
• Medical Case Reports

Background:

• Dedifferentiated liposarcoma is a rare, aggressive malignancy with a high propensity for recurrence and local invasiveness.
• Effective management strategies for rapidly recurring dedifferentiated liposarcoma remain a significant clinical challenge.

Purpose of the Study:

• To present a case of a 57-year-old male with a rapidly recurring, high-grade dedifferentiated liposarcoma.
• To illustrate the complexities in surgical management due to extensive local invasion and multiorgan involvement.
• To underscore the need for improved surveillance and novel treatment options for this challenging condition.

Main Methods:

• A 57-year-old male presented with symptoms of a large retroperitoneal mass.
• Initial diagnosis of high-grade dedifferentiated liposarcoma confirmed via imaging and biopsy.
• Underwent two extensive surgical resections involving multiple organs due to rapid recurrence and local invasion.

Main Results:

• The patient experienced rapid tumor recurrence despite initial surgical resection and adjuvant chemotherapy.
• Second-line surgery necessitated extensive organ removal including left nephrectomy, splenectomy, hemicolectomy, and distal pancreatectomy.
• Significant surgical challenges were encountered due to tumor proximity to the abdominal aorta and invasion into the psoas muscle.

Conclusions:

• High-grade dedifferentiated liposarcoma exhibits aggressive behavior and resistance to conventional chemotherapy.
• Surgical resection is the mainstay treatment, but recurrence necessitates complex, multiorgan resections.
• Further research is crucial for developing more effective therapies to improve outcomes for patients with recurrent dedifferentiated liposarcoma.