[Bisalbuminemia and bisalbuminuria: a study of a familial case]

We present one case of hereditary bisalbuminuria and bisalbuminemia in a Spanish family with three affected members. The double band of albumin was detected accidentally in an routine analytical study of a patient who showed hyperuricemia, this originated the study of the rest of the members of the family. Protein electrophoresis, in serum as well as in urine, showed a double band of albumin, which as in most published cases corresponded to the slow migration type. With immunoelectrophoresis its immune identity with common albumin was established. The biochemical parameters assessed did not show any alteration which could correlate the protein disorder with any associated pathology.