SNOMED CT, US Edition

Last uploaded: March 22, 2026
Id http://purl.bioontology.org/ontology/SNOMEDCT/238091006
http://purl.bioontology.org/ontology/SNOMEDCT/238091006
Preferred Name

Lecithin cholesterol acyltransferase deficiency

Definitions
LCAT (lecithin-cholesterol acyltransferase) deficiency is a rare lipoprotein metabolism disorder characterised clinically by corneal opacities, and sometimes renal failure and haemolytic anaemia, and biochemically by severely reduced HDL cholesterol. A rare lipoprotein metabolism disorder characterised clinically by corneal opacities and sometimes renal failure and haemolytic anaemia, and biochemically by severely reduced HDL cholesterol. Age of onset is variable but most patients are diagnosed during adulthood. Two familial forms of LCAT deficiency have been reported: familial LCAT deficiency characterised by corneal opacities, anaemia and renal insufficiency and Fish-eye disease characterised by corneal opacities and sometimes atherosclerosis. LCAT deficiency is caused by deficient or absent catalytic activity of the LCAT enzyme, which catalyses the formation of cholesterol esters in lipoproteins and is encoded by the LCAT gene (16q22.1). Accumulation of unesterified cholesterol in the body for example in the cornea, erythrocytes and kidneys, is thought to underlie the clinical manifestations. A rare lipoprotein metabolism disorder characterized clinically by corneal opacities and sometimes renal failure and hemolytic anemia, and biochemically by severely reduced HDL cholesterol. Age of onset is variable but most patients are diagnosed during adulthood. Two familial forms of LCAT deficiency have been reported: familial LCAT deficiency characterized by corneal opacities, anemia and renal insufficiency, and Fish-eye disease characterized by corneal opacities and sometimes atherosclerosis. LCAT deficiency is caused by deficient or absent catalytic activity of the LCAT enzyme, which catalyzes the formation of cholesterol esters in lipoproteins and is encoded by the LCAT gene (16q22.1). Accumulation of unesterified cholesterol in the body for example in the cornea, erythrocytes and kidneys, is thought to underlie the clinical manifestations. LCAT (lecithin-cholesterol acyltransferase) deficiency is a rare lipoprotein metabolism disorder characterized clinically by corneal opacities, and sometimes renal failure and hemolytic anemia, and biochemically by severely reduced HDL cholesterol.
Synonyms
LCAT deficiency
Lecithin cholesterol acyltransferase deficiency (disorder)
LCAT (lecithin-cholesterol acyltransferase) deficiency
Type http://www.w3.org/2002/07/owl#Class
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