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Background <p>Eosinophilic solid and cystic renal cell carcinoma (ESC RCC) is a rare subtype of renal cell carcinoma. The tumor often presents without specific clinical symptoms or detectable signs for a definitive diagnosis. The vast majority of ESC RCC are sporadic, with a few associated with tuberous sclerosis. This case report details a young patient diagnosed with ESC RCC. We recommend complete excision of the tumor after a comprehensive evaluation, followed by postoperative pathology, to achieve a conclusive diagnosis.</p> Case summary <p>An 8-year-old boy was incidentally found to have multifocal renal masses in the right kidney during routine physical examination one year ago, without presenting abdominal pain or hematuria. Contrast-enhanced abdominal computed tomography (CT) revealed two isodense masses (27 × 21&#xa0;mm and 20 × 16&#xa0;mm) at the upper pole of the right kidney. PET imaging showed no signs of metastasis. The patient underwent robot-assisted partial nephrectomy, and postoperative pathological examination diagnosed ESC RCC. Genetic testing showed no significant abnormalities. After 8 months of follow-up, there were no signs of recurrence or metastasis. This ESC RCC case is likely the youngest case reported to date in urological oncology records, according to current data.</p> Conclusion <p>A combination of imaging studies and postoperative pathological examination is crucial for the definitive diagnosis of rare tumors. For small renal tumors with well-defined borders, no evidence of metastasis, and no tumor thrombus, robot-assisted laparoscopic partial nephrectomy is a viable treatment option for pediatric renal tumors. The pathogenesis of ESC RCC requires further investigation with more data.</p>

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Eosinophilic solid and cystic renal cell carcinoma: a case study of the youngest surgical patient

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年8月8日

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  • Zhenfang Qin,
  • Geng Li,
  • Wen Zhang,
  • Fang Yu,
  • Heyun Gao,
  • Shanzhen Yu,
  • Guowei Du,
  • Tao Hu,
  • Yunkai Guo,
  • Yifan Liu,
  • Mingshuang Luo

摘要

Background

Eosinophilic solid and cystic renal cell carcinoma (ESC RCC) is a rare subtype of renal cell carcinoma. The tumor often presents without specific clinical symptoms or detectable signs for a definitive diagnosis. The vast majority of ESC RCC are sporadic, with a few associated with tuberous sclerosis. This case report details a young patient diagnosed with ESC RCC. We recommend complete excision of the tumor after a comprehensive evaluation, followed by postoperative pathology, to achieve a conclusive diagnosis.

Case summary

An 8-year-old boy was incidentally found to have multifocal renal masses in the right kidney during routine physical examination one year ago, without presenting abdominal pain or hematuria. Contrast-enhanced abdominal computed tomography (CT) revealed two isodense masses (27 × 21 mm and 20 × 16 mm) at the upper pole of the right kidney. PET imaging showed no signs of metastasis. The patient underwent robot-assisted partial nephrectomy, and postoperative pathological examination diagnosed ESC RCC. Genetic testing showed no significant abnormalities. After 8 months of follow-up, there were no signs of recurrence or metastasis. This ESC RCC case is likely the youngest case reported to date in urological oncology records, according to current data.

Conclusion

A combination of imaging studies and postoperative pathological examination is crucial for the definitive diagnosis of rare tumors. For small renal tumors with well-defined borders, no evidence of metastasis, and no tumor thrombus, robot-assisted laparoscopic partial nephrectomy is a viable treatment option for pediatric renal tumors. The pathogenesis of ESC RCC requires further investigation with more data.