S-adenosylhomocysteine hydolase deficiency see Purine & Pyrimidine Metabolic diseases
Saccade Initiation Failure see Congenital Ocular Motor Apraxia
Sacral Agenesis
Saethre-Chotzen see Craniofacial Conditions
Sagital Craniosynostosis see Craniofacial Conditions
Salaam attacks see West syndrome
Sandhoff's disease see Metabolic diseases
Sanfilippo see Mucopolysaccharide diseases and associated diseases
Santavuori disease see Batten disease
Santavuori-Haltia disease (infantile) see Batten disease
Sarcoidosis
SCAD see Fatty Acid Oxidation Disorders
Scapulohumeral Dystrophy see Muscular Dystrophy and neuromuscular disorders
Scapuloperoneal Dystrophy see Muscular Dystrophy and neuromuscular disorders
SCH see Cortical malformations
Scheie see Mucopolysaccharide diseases and associated diseases
Scheurmanns disease see Perthes disease
Schilder's disease see Adrenoleukodystrophy
Schilder's disease see Metabolic diseases
Schizencephaly see Cortical malformations
Schizophrenia
SCID see Primary Immunodeficiencies
Scleroderma
Scoliosis
SD see Frontotemporal Lobar degeneration including Frontotemporal Dementia
Second Arch syndrome see Treacher Collins syndrome
Secondary Arthritis see Arthritis (Adult)
Secondary Haemophagocytic Lymphohistiocytosis see Histiocytosis
SED see Restricted Growth
Segawa's syndrome see Dystonia
Seizures (anoxic) see Reflex Anoxic Seizures
Seizures (epileptic) see Epilepsy
Selective IgA Deficiency see Primary Immunodeficiencies
Selective Mutism
Semantic Dementia see Frontotemporal Lobar degeneration including Frontotemporal Dementia
Semilobar HPE see Holoprosencephaly
Septo-Optic Dysplasia
Serum Cholinesterase Deficiency see Metabolic diseases
Severe Combined Immune Deficiency see Primary Immunodeficiencies
Severs disease see Perthes disease