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Renal Primitive Neuroectodermal Tumor: A Case Report
Cheng Yang1, Hanjiang Xu, Jun Zhou
1From the Department of Urology (CY, HX, JZ, ZH, JW, LZ, CL), The First Affiliated Hospital of Anhui Medical University, Hefei; Department of Urology (CL), The Central Hospital of Maanshan, The Affiliated Hospital of Wannan Medical College, Maanshan; and Department of Pathology (XZ), The First Affiliated Hospital of Anhui Medical University, Hefei, China.
This case report highlights a rare instance of renal primitive neuroectodermal tumor (PNET) in a young adult female. Early consideration of renal PNET in suspicious renal masses is crucial for timely diagnosis and treatment.
Area of Science:
- Oncology
- Urology
Background:
- Primitive neuroectodermal tumors (PNETs) are rare malignant small round cell tumors typically affecting bone and soft tissues in adolescents and young adults.
- Renal PNET is exceptionally uncommon, characterized by aggressive behavior and a poor prognosis.
Observation:
- A 31-year-old female presented with flank pain, nausea, and vomiting.
- CT imaging revealed a large (14.7 × 12.7 cm) heterogeneous renal mass with solid and cystic components.
- Initial diagnosis was cystic renal cell carcinoma and urinary tract infection.
Findings:
- Post-nephrectomy, morphological and immunohistochemical analysis confirmed the diagnosis of renal PNET.
- The patient received two cycles of chemotherapy.
- At 14-month follow-up, there was no evidence of metastasis or recurrence.
Implications:
- This case underscores the importance of considering renal PNET in adolescents and young adults presenting with suspicious renal masses.
- A treatment strategy involving initial surgery followed by radiotherapy and chemotherapy is recommended for renal PNET.
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