Nephrolithiasis, Calcium Oxalate, 2, with or Without Nephrocalcinosis, is also known as nephrolithiasis, calcium oxalate, 2, with nephrocalcinosis. An important gene associated with Nephrolithiasis, Calcium Oxalate, 2, with or Without Nephrocalcinosis is OXGR1 (Oxoglutarate Receptor 1). Affiliated tissues include kidney, and related phenotypes are nephrocalcinosis and nephrolithiasis