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A benign vascular (blood vessel) tumor of the placenta A1AD AA ABPA ACA ACHM ACL tear ACS III ACTHoma AD ADA deficiency ADA-SCID ADAM complex ADC ADD ADEM ADHD ADPKD AEC syndrome AF AFE AGU AI AIDS AIDS dementia complex AIHA AIP AIS AK ALD ALS AME AMI AMS ANUG APLS APMPPE APS APUD tumors AR ARDS ARG1 deficiency ARPKD ARVC ARVD AS ASA ASD ASHD ASPD AT AV block AVM AVN Aarskog Syndrome Aarskog-Scott syndrome Aase Syndrome Aase-Smith II Syndrome Abrikossoff's tumor Abscess - intra-abdominal Achilles Tendonitis Achilles tendon rupture Achilles' tendinitis Achilles' tendonitis Achondroplasia dwarfism Acid Acid reflux disease Ackerman tumor Acne infantum Acne neonatorum Acne vulgaris Acoustic trauma Acquired cholesteatomas Acquired immune deficiency syndrome Acral dysostosis with facial and genital abnormalities Acrodermatitis - infantile lichenoid Acrodermatitis - papular infantile Acromesomelic Dwarfism Activated protein C resistance Acute bacterial tracheitis Acute guttate parapsoriasis Acute infectious thyroiditis Acute lymphoblastic leukemia (ALL) Acute necrotizing ulcerative gingivitis Acute parapsoriasis Acute pityriasis lichenoides Acute placoid pigment epitheliopathy Acute posterior multifocal placoid pigment epitheliopathy Acute respiratory distress syndrome Acute vesiculobullous hand eczema Acute viral nasopharyngitis Adam Addison's disease Addison-Schilder Disease Adenine phosphoribosyltransferase deficiency Adenoid hypertrophy Adenoma sebaceum Adie syndrome Adie's tonic pupil Adult T-cell lymphoma virus type 1 African Trypanosomiasis African eyeworm Aicardi Syndrome Alagille Syndrome Albers-Schonberg disease Albinism Albinism occulocutaneous Alcaptonuria Alcohol Withdrawal Delirium Alcohol poisoning Aldrich-Mees' lines Algoneurodystrophy Alibert-Bazin syndrome Allergic Granulomatous Angiitis of Cronkhite-Canada Allergic conjunctivitis Allergic granulomatosis Allergy Alopecia Alpers disease Alpers' Huttenlocher disease Alpers' syndrome Alpert's syndrome Alperts syndrome Alpha-1 Alport Syndrome Alport's Syndrome Alstrom Syndrome Alstrom syndrome1 Alstrom- Halgren syndrome Altitude sickness Alzheimer disease Alzheimer's Alzheimer's disease Amebic Dysentery American Plague American Trypanosomiasis Amniotic band sequence Anal atresia Anal cancer Anaplastic choroid plexus papilloma Andersen syndrome Andersen-Tawil Syndrome Anderson-Fabry disease Angel's kiss Angelman Syndrome Angiofollicular lymph node hyperplasia Angioimmunoblastic T-cell lymphoma Angiokeratoma corporis diffusum Angioosteohypertrophy syndrome Anhidrotic ectodermal dysplasia Aniseikonia Ankylostomiasis Anorchia Anterior interosseous syndrome Antley-Bixler Syndrome Aortic coarctation Aortic dissection Aortic insufficiency Aortic valve insufficiency Aortic valve stenosis Apert syndrome Apert's Syndrome Aphthous vulvovaginal Argentine hemorrhagic fever Arginase Deficiency Disease Argininemia Ariboflavinosis Arkless-Graham syndrome Arnold's neuralgia Arnold-Chiari malformation type 1 Arrhythmogenic right ventricular dysplasia Arthritis - neck Arthrogryposis Multiplex Congenita Arthrogryposis multiplex congenita with pulmonary hypoplasia Arylsulfatase A deficiency Asbestos Disease Ascher syndrome Ashy dermatosis Asiatic cholera Asperger syndrome Asperger's Asperger's Syndrome

Asperger's disorder Aspergillus disease Asteatotic eczema Ataxia telangietasia; Wilson's disease Atopic eczema Atriodigital dysplasia Australian encephalitis Australian tick typhus Autism Spectrum disorder Autoimmune hypophysitis Autosomal Dominant Larsen syndrome Avian Chlamydiosis Avian flu Axenfeld-Rieger syndrome abdominal dropsy abdominal hernia abdominoschisis abetalipoproteinemia abnormal sperm abnormality in heart rhythm abrasion abruptio placentae abscess absence seizures absent thumbs and distal aphalangia abusing paint thinner acanthamebiasis acanthosis nigricans acardiac twins accelerated idioventricular rhythm accessory spleen accessory ventricular pathway achalasia achalasia cardiae achondrogenesis achondroplasia achromasia achromatopsia achromatosis achromia acid burn to eye acid or alkali burns acid or alkali ingestion acne acne rosacea acoustic neuroma acquired epileptic aphasia acquired immunodeficiency syndrome acquired megacolon acquired torticollis acrocephalopolysyndactyly type II acrocephalosyndactyly type 3 acrochordon acrocyanosis acrodermatitis chronica atrophicans acrodermatitis enteropathica acrodysostosis acrofacial dysostosis acromegaly acromesomelic dysplasia acromioclavicular joint injury actinic granuloma actinic keratosis actinic lentigines actinic prurigo actinic purpura actinic reticuloid actinic rhytides actinomycosis acute abdomen acute adrenocortical insufficiency acute alcohol intoxication acute bacterial conjunctivitis acute blistering dermatosis acute bronchitis acute cardiomyopathy acute cerebellar ataxia acute chest syndrome acute coronary syndrome acute coryza acute disseminated encephalomyelitis acute eosinophilic pneumonia acute febrile neutrophilic dermatosis acute glomerulonephritis acute hemorrhagic conjunctivitis acute hypertensive crises acute idiopathic dysautonomia acute intermittent porphyria acute interstitial nephritis acute kidney failure acute kidney injury acute laryngitis acute lymphadenitis acute lymphocytic leukemia acute mastitis acute megacolon acute mountain sickness acute myelogenous leukemia (AML) acute myeloid leukemia acute myocardial infarction acute nephritic syndrome acute pancreatitis acute pericarditis acute posthemorrhagic anemia acute pregnancy-related fatty liver acute prostatitis acute pulmonary edema acute pyelonephritis acute renal failure acute respiratory failure acute stress disorder acute thyroiditis acute transient epiphysitis acute tubular necrosis acute viral hepatitis adenoidal enlargement adenoma sebaceum adenosine deaminase deficiency adhesive capsulitis adjustment disorder adrenal cancer adrenal failure adrenal gland insufficiency adrenal tumors adrenocortical carcinoma adrenoleukodystrophy adult Huntington disease adult onset cerebellar ataxia adult respiratory distress syndrome adult-onset diabetes ae fistula aerophagia aerophagy afib afibrinogenemia agenesis of uterus ageusia aggressive fibromatosis aglossia adactylia agoraphobia agranulocytosis aicardi-goutieres syndrome akinetic seizures alalia syllabaris alcohol dependence alcohol related birth defects alcohol withdrawal alcoholic cardiomyopathy alcoholic cerebellar degeneration alcoholic hepatitis alcoholic liver disease alcoholic myopathy alcoholic neuropathy alcoholism aldosteronism alfi's syndrome alkali burn to the eye alkaptonuric ochronosis allergic bronchopulmonary aspergillosis allergic conjunctivitis allergic purpura allergic reaction allergic rhinitis alloimmune throbocytopenia alopecia areata alopecia areata universalis alopecia congenita alopecia totalis alopecia universalis alpha 1 alpha 1 antitrypsin deficiency alpha mannasidosis alpha thalassemia alpha thalassemia minor alpha- methylacetoacetic aciduria alpha-ketoglutaric aciduria alpha-l-fucosidase deficiency also known as Nyhan’s syndrome also known as hereditary progressive dystonia with diurnal fluctuation altitude illness alveolar proteinosis

alveolar soft part sarcoma amblyopia amebiasis extraintestinal amebiasis intestinal amebic meningoencephalitis aminoacylase 2 deficiency amniotic band syndrome amniotic fluid embolism amyl nitrites amyloidosis amyotrophic lateral sclerosis anabolic steroids abuse anaemia anagen effluvium anal abscess anal atresia anal carcinoma anal fissure anal fistula anal outlet obstruction anal sphincter dyssynergia anal trauma anal wart analgesic headache anaphylactic reaction anaphylactoid purpura anaphylaxis anaplasmosis anaplastic thyroid carcinoma anchylostomiasis and 47 and American mountain fever androblastoma androgen insensitivity androgen resistance syndrome anemia anemia of chronic disease anencephaly anesthesia aneurysmal bone cyst angel dust abuse angina angina pectoris angina pectoris unstable angiodysplasia angiodysplasia of the GI tract angioedema angiofibroma angiokeratoma angioneurotic edema angiooedema angiosarcoma angiostrongyliasis animal bites aniridia anismus anisometropia ankle impingement syndrome ankle injury ankle ligament injury ankle sprain ankle strain ankyloblepharon-ectodermal dysplasia-clefting syndrome ankylosing spondylitis ankylosing vertebral hyperostosis anogenital warts anophthalmos with associated anomalies anorchia anorchism anorectal abscess anorectal malformations anorectal trauma anorexia nervosa anosmia anteflexed or retroflexed uterus anterior cruciate ligament tear anterior interosseous syndrome anterior plagiocephaly anterior spinal artery syndrome anthrax anti-glomerular basement membrane disease antiphospholipid antibody syndrome antisocial personality disorder antithrombin III deficiency anxiety anxious personality disorder. avoidant personality disorder aortic aneurysm aortic arch abnormalities aortic dissection aortic isthmus rupture aortic regurgitation aortic stenosis aortoesophageal fistula aphasia with convulsive disorder aphthous stomatitis aphthous ulcers aplasia cutis congenita aplastic anemia apnea of prematurity apocrine miliaria apolipoprotein deficiency apparent mineralocorticoid excess appendicitis apple sickness aquagenic urticaria aquagenous urticaria arachnoid cyst arginase deficiency argininosuccinic acidemia arginosuccinic aciduria arhinencephaly arm vein thrombosis aromatase deficiency arrhenoblastoma arrhenoblastoma of the ovaries arrhythmogenic right ventricular cardiomyopathy arsenic poisoning art or office supplies arterial thrombosis arteriohepatic dysplasia arteriovenous malformations arthritis arthrogryposis asbestosis ascariasis ascites aseptic necrosis aspartoacylase deficiency aspartylglycosaminuria aspergillosis aspiration pneumonia assassin bugs asteatotic eczema asthenic personality disorder asthma astigmatism astrocytoma asystole ataxia-telangiectasia atherosclerosis athlete's foot athletic individual atonic seizures atopic dermatitis atrial fibrillation atrial flutter atrial myxoma atrial septal defect atrial tachycardia with a consistent AV conduction ratio atrioventricular block atrioventricular dissociation atrioventricular nodal reentry tachycardia atrioventricular septal defect atrophic vaginitis attempted murder attention deficit hyperactive syndrome atypical Parkinson's atypical facial pain atypical mycobacterial infection auditory neuropathy auricular perichondritis autism auto immune hepatitis autoimmune hemolytic anemia autoimmune hepatitis autoimmune neutropenia autoimmune thrombocytopenia and anemia autonomic failure syndromes autonomic neuropathy autosomal dominant cerebellar ataxia autosomal dominant polycystic kidney disease autosomal recessive polycystic kidney disease autosomal recessive type 3 (SCN3) avascular necrosis of bone avascular necrosis of femoral head avian influenza avoidance personality disorder avulsion fracture anterior superior iliac spine azoospermia