Abstract
Eosinophilic solid and cystic renal cell carcinoma is a rare subtype of clear cell renal cell carcinoma, described since 1976 and included in the latest edition of the WHO Classification of Urinary and Genital Tumors. This renal carcinoma shows a characteristic CK20 positive and CK7 negative immunohistochemistry, its incidence is unknown and it represents 0.2% of all clear cell renal carcinomas. Its presentation is usually indolent, but there are records of more aggressive presentations with metastatic disease. The case of a 7-year-old patient with a history of tuberous sclerosis and de novo complex kidney injury is reported.
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