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Primitive neuroectodermal tumors of the kidney.
Geetha Narayanan1, Varun Rajan1, T R Preethi1
1Departments of Medical Oncology (Narayanan, Rajan) and Pathology (Preethi), Regional Cancer Centre, Trivandrum, India.
Proceedings (Baylor University. Medical Center)
|April 14, 2017
Summary
Primitive neuroectodermal tumor (PNET) of the kidney is rare and aggressive, primarily affecting young individuals. Early diagnosis and multimodal treatment, including surgery, chemotherapy, and radiotherapy, are crucial for managing this challenging renal cancer.
Area of Science:
- Oncology
- Pathology
Background:
- Ewing's sarcoma/primitive neuroectodermal tumor (ES/PNET) is a rare primary renal malignancy.
- It predominantly affects pediatric and young adult populations, characterized by an aggressive clinical course.
Observation:
- Clinical presentations and imaging findings for renal PNET are often nonspecific, leading to delayed diagnosis at advanced stages.
- Common symptoms include flank/abdominal pain and palpable abdominal masses.
- Imaging may reveal large, heterogeneous, infiltrating renal masses with calcifications, hemorrhage, necrosis, and tumor thrombus.
Findings:
- Immunohistochemistry and molecular studies are indispensable for confirming the diagnosis of renal PNET.
- The prognosis for renal ES/PNET is generally poor.
Implications:
- Radical nephrectomy, chemotherapy, and radiotherapy constitute the standard treatment approach for renal PNET.
- Prompt and precise diagnosis is paramount for effective management of these aggressive renal tumors.