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Bad, people with the disorder die in their 30s-40s
Frequency
very rare, only 1 family is known to have the disorder
Feigenbaum Bergeron Richardson syndrome, also known as Atherosclerosis-deafness-diabetes-epilepsy-nephropathy syndrome is a very rare fatal genetic disorder which is characterized by atherosclerosis, hearing loss, diabetes mellitus, epilepsy, progressive neurological deterioration and nephropathy. This disorder has been described in two brothers, and it is thought to be inherited in either an autosomal or X-linked recessive manner. No new cases have been reported since 1994. People with this disorder don't usually live beyond 30 to 40 years of age.
Bissonnette, Bruno; Luginbuehl, Igor; Marciniak, Bruno; Dalens, Bernard J. (2006), "Feigenbaum Bergeron Richardson Syndrome", Syndromes: Rapid Recognition and Perioperative Implications, New York, NY: The McGraw-Hill Companies, retrieved 2022-05-15