Jackknife Convulsions see West syndrome
Jacobsen syndrome
Jansky-Bielschowsky disease (late infantile Type) see Batten disease
Japanese Encephalitis see Arboviral Encephalitides
JDM see Dermatomyositis and Polymyositis
Jerking Stiff Person syndrome see Stiff Man syndrome
Jervell-Lange-Nielson syndrome see Long QT syndrome
Job's syndrome see Primary Immunodeficiencies
Joubert syndrome
JPM see Dermatomyositis and Polymyositis
Junctional EB see Epidermolysis Bullosa
Juvenile Dermatomyositis see Dermatomyositis and Polymyositis
Juvenile Dystonic Lipidosis see Niemann-Pick disease
Juvenile Idiopathic Arthritis see Arthritis (Juvenile Idiopathic)
Juvenile Nephronopthisis see Kidney disease
Juvenile Polymyositis see Dermatomyositis and Polymyositis