<s>[INST] My dad (59) yrs old did a sonogram on his testicle and was found 3 small dark spot. Could it be cancer? There are the sonogram finding: There are 3 irregularly bordered small hypoechoic defects present in the left testicle. The largest is 0.3 cm, towards the mid- lower pole. The other two are upper pole. On image submitted there was no Doppler suggestion of vascularity within these lesions, on repeat real-time reviews, there appears to be internal vascular to the lesions. There is a small anechoic defect within the midsole of he left testicle which real time color dropper indicated was a vessel. [/INST] Thanks for your question on Chat Doctor. In my opinion no need to worry much.  As these spots indicate vessels only. So get done repeat ultrasound after 3 months.  If spots are similar than no need to worry. They are just vascular lesion only. But if they are enlarging than biopsy is needed. If you really want to rule out malignancy at present than get done CEA, AFP and Chat Doctor level. If all these are normal than no need to worry about malignancy.  Get done repeat ultrasound after 3 months. </s>