Hi, i have recently done ultrasound of abdomen and pelvis of my mom. And it says my mom's right kidney measures 11.4cm * 6 cm, shows a complex cortical cyst measuring 4*3.7 cm at the mid pole,showing echogenic internal Septations. No obvious mural nodule seen within cyst. No calculi. No hydronephrosis. Can you please tell, what this mean and how much harmful it can be? What should be our next steps for treatment? Thanks.