Question: What is (are) Tietz syndrome ?
Answer: Tietz syndrome is a rare condition that affects the development of melanocytes, the cells in our body that produce and contain melanin (the pigment that gives color to skin, hair, and eyes). Signs and symptoms of this condition are present from birth and usually include sensorineural hearing loss, fair skin, and light-colored hair. It is caused by changes (mutations) in the MITF gene and inherited in an autosomal dominant manner. The goal of treatment is to improve hearing; cochlear implantation may be considered.
Source: GARD