A group of inherited enzyme deficiencies which feature elevations of GALACTOSE in the blood. This condition may be associated with deficiencies of GALACTOKINASE; UDPGLUCOSE-HEXOSE-1-PHOSPHATE URIDYLYLTRANSFERASE; or UDPGLUCOSE 4-EPIMERASE. The classic form is caused by UDPglucose-Hexose-1-Phosphate Uridylyltransferase deficiency, and presents in infancy with FAILURE TO THRIVE; VOMITING; and INTRACRANIAL HYPERTENSION. Affected individuals also may develop MENTAL RETARDATION; JAUNDICE; hepatosplenomegaly; ovarian failure (PRIMARY OVARIAN INSUFFICIENCY); and cataracts. (From Menkes, Textbook of Child Neurology, 5th ed, pp61-3)

Synonyms: UDPglucose 4-Epimerase Deficiency Disease UDPglucose 4 Epimerase Deficiency Disease Deficiencies, Galactose-1-Phosphate Uridylyltransferase Uridyltransferase Deficiency, Galactose-1-Phosphate Galactose-1-Phosphate Uridyltransferase Deficiency Epimerase Deficiency Galactosemia UDP Galactose 4 Epimerase Deficiency Deficiency Galactosemias, Epimerase GALT Deficiencies Hereditary Galactokinase Deficiencies Galactosemia 2s Galactosemia 2 Galactosemia 3 UTP Hexose 1 Phosphate Uridylyltransferase Deficiency Disease Galactokinase Deficiencies, Hereditary UDPGlucose Hexose-1-Phosphate Uridylyltransferase Deficiency UTP Hexose 1 Phosphate Uridylyltransferase Deficiency Deficiency Disease, UDP-Galactose-4-Epimerase Classic Galactosemia Deficiencies, Galactose Epimerase Deficiency Disease, UDP Galactose 4 Epimerase UTP-Hexose-1-Phosphate Uridylyltransferase Deficiency Disease Deficiencies, GALK Galactokinase Deficiencies Galactose Epimerase Deficiencies Deficiencies, GALT Deficiency Disease, Galactose-1-Phosphate Uridyl-Transferase UDP-Galactose-4-Epimerase Deficiencies Galactose-1-Phosphate Uridyltransferase Deficiencies Uridylyltransferase Deficiency, Galactose-1-Phosphate Deficiency Disease, UDPglucose 4 Epimerase Deficiency, Hereditary Galactokinase Galactosemia 3s Hereditary Galactokinase Deficiency Deficiencies, Galactokinase Galactose Epimerase Deficiency Galactose-1-Phosphate Uridylyltransferase Deficiency Deficiency Galactosemia, Epimerase Deficiency, Galactose Epimerase Deficiency, UDP-Galactose-4-Epimerase Galactosemia, Epimerase Deficiency Deficiencies, GALE GALE Deficiencies GALE Deficiency Galactosemia IIIs Deficiencies, UDP-Galactose-4-Epimerase Galactose-1-Phosphate Uridylyltransferase Deficiencies Uridylyltransferase Deficiencies, Galactose-1-Phosphate Galactosemias, Classic UDP-Galactose-4-Epimerase Deficiency Diseases Deficiencies, Hereditary Galactokinase UDP Galactose 4 Epimerase Deficiency Disease GALK Deficiency GALK Deficiencies Deficiency, GALT Galactose 1 Phosphate Uridyl Transferase Deficiency Disease Galactose 1 Phosphate Uridyltransferase Deficiency Galactose 1 Phosphate Uridylyltransferase Deficiency Galactosemia, Classic UDP-Galactose-4-Epimerase Deficiency Deficiency, GALK Galactokinase Deficiency Diseases Deficiency, GALE Deficiency, Galactokinase Deficiency Diseases, UDP-Galactose-4-Epimerase Galactosemia III Deficiency, Galactose-1-Phosphate Uridylyltransferase Classic Galactosemias UDPGlucose Hexose 1 Phosphate Uridylyltransferase Deficiency Deficiency Disease, Galactokinase GALT Deficiency Galactosemias Deficiency Disease, Galactose 1 Phosphate Uridyl Transferase Uridyltransferase Deficiencies, Galactose-1-Phosphate Galactokinase Deficiency, Hereditary Galactosemia UTP Hexose-1-Phosphate Uridylyltransferase Deficiency UDP-Galactose-4-Epimerase Deficiency Disease Galactokinase Deficiency Epimerase Deficiency Galactosemias Galactosemias, Epimerase Deficiency Galactokinase Deficiency Disease Deficiencies, Galactose-1-Phosphate Uridyltransferase Deficiency, Galactose-1-Phosphate Uridyltransferase Deficiency Disease, UDPglucose 4-Epimerase Galactose-1-Phosphate Uridyl-Transferase Deficiency Disease