n :  an error in lipid metabolism that is inherited as an autosomal recessive trait, is characterized by accumulation of phospholipid in macrophages of the liver, spleen, lymph glands, and bone marrow, and leads to gastrointestinal disturbances, malnutrition, enlargement of the spleen, liver, and lymph nodes, and abnormalities of the blood-forming organs - compare GAUCHER'S DISEASE SPIELMEYER-VOGT DISEASE TAY-SACHS DISEASE 
 
Niemann, Albert (1880-1921), and Pick, Ludwig (1868-1944), German physicians. Niemann published the first description of a form of xanthomatosis in 1914. In 1926 Pick described the same condition but in much greater detail. Because of their respective contributions the disease is now known as Niemann-Pick disease.
 
 
 
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