<unk>  is a group of inherited metabolic disorders that affect the body's ability to carry out the normal turnover of various materials within cells. When originally named, the<unk>  derived their name from the similarity in presentation to both mucopolysaccharidoses and sphingolipidoses. A biochemical understanding of these conditions has changed how they are classified. Four conditions (types I, II, III, and IV) were historically labeled as<unk> . However, type I (sialidosis) is now classified as a glycoproteinosis, and type IV<unk>  type IV) is now classified as a gangliosidosis.
Mucolipidosis
Sphingolipidoses
GM1 gangliosidoses
GM2 gangliosidoses
Mucopolysaccharidosis
Gangliosidosis
Mucopolysaccharidosis type I
Glycogen storage disease type VI