First reported case of hereditary bisalbuminaemia in Pakistan.

A 50 year old female patient demonstrated double peaks of albumin on serum protein electrophoresis (SPE). Patient's detailed medical history was taken and investigations were carried out to rule out systemic causes. Serum electrophoresis was also done on 5 of patient's children. Mixing studies were performed in gradually decreasing concentration of bisalbuminemic serum. Hereditary Bisalbuminaemia with the variant albumin showing slower mobility, was observed.