Step 1 → Renal Congenital and Cystic KidneyPreview this topic sectionPreview the conditions. Plans unlock the full Step 1 details when you need them. Free Biochemistry Free Microbiology Plans Congenital and Cystic Kidney conditions Autosomal Dominant Polycystic Kidney Disease (ADPKD) Autosomal Recessive Polycystic Kidney Disease (ARPKD) Congenital Solitary Functioning Kidney Duplex Collecting System Horseshoe Kidney Multicystic Dysplastic Kidney Potter Sequence Simple vs Complex Renal Cysts Unilateral Renal Agenesis