Cholestasis, Progressive Familial Intrahepatic, 7, with or Without Hearing Loss, is also known as pfic7. An important gene associated with Cholestasis, Progressive Familial Intrahepatic, 7, with or Without Hearing Loss is USP53 (Ubiquitin Specific Peptidase 53). Affiliated tissues include liver, and related phenotypes are hepatic fibrosis and cholestasis