Primitive neuroectodermal peripheral tumour of the retroperitoneum

Area of Science:

• Oncology
• Surgical Oncology
• Vascular Surgery

Background:

• Retroperitoneal primitive neuroectodermal tumors (PNETs) are rare malignancies.
• Complete surgical resection is the primary treatment modality for PNETs.
• Tumor location can necessitate complex surgical approaches involving major vascular structures.

Observation:

• A 19-year-old male presented with a large retroperitoneal primitive neuroectodermal tumor.
• The tumor's size and location mandated extensive surgical intervention.
• En bloc resection of the tumor required removal of the inferior vena cava.

Findings:

• Achieving R0 resection (complete tumor removal with clear margins) was feasible.
• Vascular reconstruction using a prosthetic graft successfully restored venous blood flow.
• The surgical strategy addressed both oncological and vascular challenges.

Implications:

• This case highlights the feasibility of radical surgical resection for large retroperitoneal PNETs.
• Vascular reconstruction techniques are crucial for managing complex oncological resections.
• Successful outcomes depend on multidisciplinary collaboration between surgical oncology and vascular surgery.