C Syndrome
Camptomelic Syndrome
Candidiasis
Carbohydrate Deficient Glycoprotein Syndrome (Type I)
Carcinoid Syndrome
Carcinoid Tumors
CardioAuditory Syndrome
Cardio-Facio-Cutaneous Syndrome
Cardiovascular Disorder
Carnitine Deficiency Syndromes
Carnitine Palmityltransferase Deficiency
Carpal Tunnel Syndrome
Carpenter Syndrome
Cataract Dental Syndrome
Caudal Regression Syndrome
Cayler Syndrome
CBPS or Perisylvian Syndrome (Congenital, bilateral)
Celiac Disease
Cerebellar Ataxia
Cerebral Aneurysm
Cerebro-Costo-Mandibular Syndrome
Cerebrohepatorenal Syndrome
Chagas Disease
Chanarin Dorfman Syndrome
Chandler's Syndrome
Charcot Marie Tooth
Charge Syndrome
Chediak-Hagashi Syndrome
Chiari-Frommel Syndrome
CHILD Ichthyosis
Children's ePALS
Christmas Disease
Chromosome 11q Disorders
Chromosome 3 Disorders
Chromosome 4 Disorders
Chromosome 5 Disorders
Chronic Fatigue
Cloacal Exstrophy
Cockayne Syndrome
Coffin-Lowry Syndrome
Coffin-Siris syndrome
Cofs Syndrome
Cohen Syndrome
Conn Syndrome
Conradi-Hunermann Syndrome
Cooley's Anemia
Carbohydrate Deficient Glycoprotein (Type I) Syndrome
Cornelia De Lange Syndrome
Costello Syndrome
Cowdens Disease
Cramp-Fasciculations Syndrome
Cri Du Chat Syndrome
Cushing's Syndrome
Cystic Fibrosis
Cystinosis
Cytomegalovirus (Congenital)