Abstract
To publish the various clinical presentations that may manifest this type of pathology through the case of a 58-year-old male
who comes to the clinic for weight loss of 10 kilos in 1 month and pain in the left renal fossa which radiates to the left iliac fossa
and left testicle. Imaging studies were performed, and he found a large left kidney tumour which in turn was causing a varicocele
confirmed by testicular ultrasound. The treatment of choice was open radical nephrectomy. It is extremely important to
determine and prevent risk factors for patients who may develop this pathology, as well as to identify the paraneoplastic
symptoms that can guide us to a more accurate diagnosis, as well as rule out differential diagnoses.