Clinical case:

Hybrid renal tumor is defined as that neoplasm whose components are given by the presence of oncocytes (oncocytoma) and chromophobe cells whose preoperative diagnosis is challenging due to its great similarity with typical oncocytoma. Its modalities of presentation include hereditary and sporadic, the first being the most frequent, associated with the involvement of other organs such as the skin and the lungs.

Clinical implications:

We present the case of a 9-year-old female patient, a primary school student, who was incidentally found to have a mass on the left flank, not painful on palpation, fixed, of approximately 8 cm, for which Ultrasound, abdominal tomography, and renal angiotomography were performed, confirming the presence of a large, well-defined left renal mass, heterogeneous by area of ​​central necrosis, with no evidence of infiltration to adjacent structures or vascular invasion whose histopathological report revealed hybrid renal oncocytoma, for which is taken to laparoscopic total nephrectomy, presenting adequate evolution in its follow-up.

Relevance:

Familiarizing ourselves with the spectrum of renal masses in schoolchildren is of vital importance since they are benign neoplasms, which prevents the use of necessary measures.

Conclusion:

Rapid identification allows timely surgical lesions with less morbidity in patients, so it is important that different specialists know their imaging findings.