---

Aarskog syndrome [Disease]

Aase syndrome [Disease]

Ab

---

Abdominal aortic aneurysm [Disease]

ABO incompatibility [Disease]

Abscess [Disease]

Absent pulmonary valve [Disease]

Ac

---

Acanthosis nigricans [Disease]

Achalasia [Disease]

Achilles tendinitis [Disease]

Achondrogenesis [Disease]

Achondroplasia [Disease]

Acidosis [Disease]

Acne [Disease]

Acoustic neuroma [Disease]

Acoustic trauma [Disease]

Acquired platelet function defect [Disease]

Acrodermatitis [Disease]

Acrodysostosis [Disease]

Acromegaly [Disease]

Actinic keratosis [Disease]

Actinomycosis [Disease]

Acute adrenal crisis [Disease]

Acute arterial occlusion - kidney [Disease]

Acute bilateral obstructive uropathy [Disease]

Acute cerebellar ataxia [Disease]

Acute cholecystitis [Disease]

Acute cytomegalovirus (CMV) infection [Disease]

Acute HIV infection [Disease]

Acute kidney failure [Disease]

Acute lymphocytic leukemia (ALL) [Disease]

Acute mountain sickness [Disease]

Acute myeloid leukemia [Disease]

Acute nephritic syndrome [Disease]

Acute pancreatitis [Disease]

Acute respiratory distress syndrome [Disease]

Acute tubular necrosis [Disease]

Acute unilateral obstructive uropathy [Disease]

Acute upper airway obstruction [Disease]

Ad

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Addison's disease [Disease]

Adenomyosis [Disease]

Adhesion [Disease]

Adjustment disorder [Disease]

Adolescent depression [Disease]

Adolescent pregnancy [Disease]

Adrenocortical carcinoma [Disease]

Adrenoleukodystrophy [Disease]

Adult Still's disease [Disease]

Ag

---

Agammaglobulinemia [Disease]

Age-related hearing loss [Disease]

Agoraphobia [Disease]

Agranulocytosis [Disease]

AI

---

Aicardi syndrome [Disease]

AIDS [Disease]

Al

---

Albinism [Disease]

Alcohol withdrawal [Disease]

Alcoholic ketoacidosis [Disease]

Alcoholic liver disease [Disease]

Alcoholic neuropathy [Disease]

Alcoholism [Disease]

Alkalosis [Disease]

Alkaptonuria [Disease]

Allergic conjunctivitis [Disease]

Allergic rhinitis [Disease]

Allergic vasculitis [Disease]

Allergies [Disease]

Allergy to mold - animal dander - dust [Disease]

Alopecia areata [Disease]

Alpha-1 antitrypsin deficiency [Disease]

Alport syndrome [Disease]

Alström syndrome [Disease]

Alveolar abnormalities [Disease]

Alzheimer's disease [Disease]

Am

---

Amaurosis fugax [Disease]

Amblyopia [Disease]

Amebiasis [Disease]

Amebic liver abscess [Disease]

Amelogenesis imperfecta [Disease]

Amenorrhea - primary [Disease]

Amniotic constriction bands [Disease]

Amphetamine intoxication [Disease]

Amyotrophic lateral sclerosis [Disease]

An

---

Anal fissure [Disease]

Analgesic nephropathy [Disease]

Anaphylaxis [Disease]

Anaplastic thyroid cancer [Disease]

Androgen insensitivity syndrome [Disease]

Anemia [Disease]

Anemia - B12 deficiency [Disease]

Anemia of chronic disease [Disease]

Anencephaly [Disease]

Aneurysm [Disease]

Aneurysm in the brain [Disease]

Angina [Disease]

Angiodysplasia of the colon [Disease]

Angioedema [Disease]

Ankylosing spondylitis [Disease]

Annular pancreas [Disease]

Anomalous left coronary artery [Disease]

Anorchia [Disease]

Anorectal abscess [Disease]

Anorexia nervosa [Disease]

Anthrax [Disease]

Antisocial personality disorder [Disease]

Ao

---

Aortic arch syndrome [Disease]

Aortic dissection [Disease]

Aortic insufficiency [Disease]

Aortic stenosis [Disease]

Aortopulmonary window [Disease]

Ap

---

Apert syndrome [Disease]

Apnea of prematurity [Disease]

Apoplexy [Disease]

Appendicitis [Disease]

Ar

---

Arrhenoblastoma of ovary [Disease]

Arrhythmias [Disease]

Arterial embolism [Disease]

Arterial insufficiency [Disease]

Arteriovenous malformation - cerebral [Disease]

Arthritis [Disease]

As

---

Asbestos-related pleural effusion [Disease]

Asbestosis [Disease]

Ascariasis [Disease]

Ascites [Disease]

Aseptic meningitis [Disease]

Asherman syndrome [Disease]

Asperger syndrome [Disease]

Aspergillosis [Disease]

Aspiration pneumonia [Disease]

Asthma [Disease]

Asthma - pediatric [Disease]

Astigmatism [Disease]

Asymptomatic bacteriuria [Disease]

Asymptomatic HIV infection [Disease]

At

---

Ataxia - telangiectasia [Disease]

Atelectasis [Disease]

Atheroembolic renal disease [Disease]

Atherosclerosis [Disease]

Athlete's foot [Disease]

Atrial fibrillation/flutter [Disease]

Atrial myxoma [Disease]

Atrial septal defect [Disease]

Atrophic vaginitis [Disease]

Attention deficit hyperactivity disorder (ADHD) [Disease]

Atypical pneumonia [Disease]

Au

---

Aural polyps [Disease]

Autism [Disease]

Autoerythrocyte sensitivity [Disease]

Autoimmune disorders [Disease]

Autoimmune hepatitis [Disease]

Autonomic hyperreflexia [Disease]

Autonomic neuropathy [Disease]

Av

---

Avian influenza [Disease]

Avoidant personality disorder [Disease]

Ax

---

Axillary nerve dysfunction [Disease]