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[Primitive neuroectodermal tumor of the kidney. A case report]
G Valero1, A Escalona, R Leyton
1Servicio de Urología y Departamento de Anatomía Patológica, Hospital Clínico FUSAT, Rancagua, Chile.
Revista Medica De Chile
|May 16, 2001
Summary
A rare primary neuroectodermal tumor of the kidney presented in a young female, causing abdominal mass and pain. Despite treatment, the aggressive tumor progressed, highlighting the challenges in managing these infrequent urinary system malignancies.
Area of Science:
- Oncology
- Pathology
- Urology
Background:
- Primary neuroectodermal tumors (PNETs) are rare malignancies with diverse origins.
- The urinary system is an exceptionally uncommon site for PNETs, making diagnosis and treatment challenging.
Observation:
- A 27-year-old female presented with abdominal pain, malaise, and a large left abdominal mass.
- Imaging revealed an 18 cm heterogeneous renal tumor.
- Surgical resection was incomplete.
Findings:
- Pathological examination showed a small round cell tumor with features of a PNET.
- Immunohistochemistry confirmed positivity for specific neuronal enolase and CD99.
- The tumor exhibited aggressive behavior with rapid progression post-chemotherapy.
Implications:
- This case underscores the extreme rarity of primary renal neuroectodermal tumors.
- It highlights the diagnostic difficulties and aggressive nature of these tumors.
- Further research into PNETs of the urinary system is warranted for improved therapeutic strategies.