Avascular Necrosis of Femoral Head, Primary, 2, is also known as anfh2. An important gene associated with Avascular Necrosis of Femoral Head, Primary, 2 is TRPV4 (Transient Receptor Potential Cation Channel Subfamily V Member 4). Affiliated tissues include bone, and related phenotypes are avascular necrosis of the capital femoral epiphysis and short stature