| Title | Type |
|---|---|
| Abnormal hands | Feature |
| Acute chest syndrome | Disease |
| Alagille Syndrome | Rare Condition |
| Alagille Syndrome | General Medical Guideline |
| Alport Syndrome | Rare Condition |
| Alport Syndrome | General Medical Guideline |
| Anemia in Sickle Cell Disease | Symptom |
| Anemia in thalassemia | Symptom |
| Anterior fontanelle closure | Feature |
| Anterior fontanelle persists | Symptom |
| Antimongoloid slanting palpebral fissures | Feature |
| Antimongoloid slanting palpebral fissures | Symptom |
| Aural Atresia | Disease |
| Autism | Disease |
| Autosomaal dominante mentale retardatie-50 | Symptom |
| Autosomal dominant inheritance | Feature |
| Autosomal dominant inheritance in TCS | Symptom |
| Autosomal dominant mental retardation-18 | Rare Condition |
| Autosomal dominant mental retardation-50 | Rare Condition |
| Autosomal dominant mental retardation-50 | General Medical Guideline |
| Autosomal recessive disease | Feature |