Main Campus: Chesterfield, MO 63017 | 
Diseases & Conditions
- B-cell lymphoma
- Back pain - new
- Back pain - short-term
- Back pain - spinal stenosis
- Back strain - new
- Backache
- Backache - chronic
- Bacteremia with sepsis
- Bacteremic shock
- Bacterial arthritis
- Bacterial diarrhea
- Bacterial endocarditis - children
- Bacterial gastroenteritis
- Bacterial keratitis
- Bacterial labyrinthitis
- Bacterial liver abscess
- Bacterial overgrowth - intestine
- Bacterial tracheitis
- Baggy eyelids
- Baker cyst
- Baker's cyst
- Balanitis
- Balanoposthitis
- Baldness - female
- Baldness - male
- Balloon valvuloplasty - pulmonary
- Bannwarth syndrome
- Barber's itch
- Barbiturate intoxication and overdose
- Barking cough - croup
- Barlow syndrome
- Barotitis media
- Barotrauma
- Barrett esophagus
- Barrett's esophagus
- Bartholin cyst or abscess
- Bartonellosis
- Bartter syndrome
- Basal cell cancer - nevoid basal cell carcinoma syndrome
- Basal cell carcinoma
- Basal cell epithelioma
- Basal cell nevus syndrome
- Basal cell NMSC
- Basal cell skin cancer
- Basal ganglia dysfunction
- Baseball elbow
- Basra poison grain poisoning
- Bassen-Kornzweig syndrome
- Bat bite - rabies
- Bathing trunk nevus
- Batten disease
- Battered child syndrome
- BAV
- BCNS
- Beauty parlor syndrome
- Becker muscular dystrophy
- Becker's disease
- Becker's dystrophy
- Beckwith-Wiedemann syndrome
- Beef tapeworm
- Bell palsy
- Benign breast disease
- Benign ear cyst or tumor
- Benign essential tremor
- Benign intracranial hypertension
- Benign migratory glossitis
- Benign nasal tumor
- Benign paroxysmal peritonitis
- Benign paroxysmal positional vertigo
- Benign positional vertigo
- Benign prostatic hyperplasia (hypertrophy)
- Benign prostatic hypertrophy (hyperplasia)
- Benign pseudohypertrophic muscular dystrophy
- Benign skin tumors - keratosis
- Bereavement
- Berger disease
- Berger's disease
- Beriberi
- Bernard-Soulier syndrome
- Beta galactosidase deficiency
- Beta thalassemia
- Bezoar
- Bicipital tendinitis
- Bicommissural aortic valve
- Bicuspid aortic valve
- Biduoterian fever
- Bilateral acoustic neurofibromatosis
- Bilateral hydronephrosis
- Bile duct cancer
- Bile duct obstruction
- Bile duct stone
- Bile duct stricture
- Bilharzia
- Bili lights - jaundice
- Biliary atresia
- Biliary calculus
- Biliary calculus: chenodeoxycholic acids (CDCA)
- Biliary colic
- Biliary obstruction
- Biliary stricture
- Bilirubin encephalopathy
- Bilirubin encephalopathy (BE)
- Bilirubin-induced neurologic dysfunction (BIND)
- Billowing mitral valve
- Binge-purge behavior
- Biopsy - prostate
- Bipolar - suicide
- Bipolar affective disorder
- Bipolar disorder
- Bird breeder's or bird fancier's lung
- Bird flu
- Birth defect - ALCAPA
- Birth defect - dextrocardia
- Birth defect - DILV
- Birth defect - DORV
- Birth defect - ECD
- Birth defect - gastroschisis
- Birth defect - omphalocele
- Birth defect - tetralogy
- Birth defect - transposition
- Birth defect - vagina, ovaries, uterus, and cervix
- Birth defect heart - aortopulmonary window
- Birth defect heart - ASD
- Birth defect heart - coronary artery fistula
- Birth defect heart - double aortic arch
- Birth defect heart - Ebstein
- Birth defect heart - Eisenmenger
- Birth defect heart - pulmonary valve
- Birth defect heart - vascular ring
- Birth-acquired herpes
- Birth-related brachial plexus palsy
- Birthmark - hemangioma
- Birthmarks - pigmented
- Birthmarks - red
- Black lung disease
- Blackwater fever
- Bladder calculi
- Bladder cancer
- Bladder incontinence stress
- Bladder infection - adults
- Bladder infection - children
- Bladder injury
- Bladder outlet obstruction
- Bladder pain syndrome
- Bladder spasms
- Bladder stones
- Bland-White-Garland syndrome
- Blastomycosis
- Bleeding - dysfunctional uterine
- Bleeding disorder - Factor V deficiency
- Bleeding disorder - hemophilia A
- Bleeding disorder - hemophilia B
- Bleeding disorder - idiopathic thrombocytopenic purpura
- Bleeding disorder - ITP
- Bleeding disorder - von Willebrand
- Bleeding disorders
- Bleeding esophageal varices
- Bleeding ulcer
- Blepharitis
- Blepharoptosis
- Blepharospasm
- Blind loop syndrome
- Blindness - color
- Bloating - lactose intolerance
- Bloch-Sulzberger syndrome
- Blockage of leg arteries
- Blockage of upper airway
- Blocked nasolacrimal duct
- Blocked tear duct
- Blood cancer - chronic lymphocytic leukemia
- Blood clot - lung
- Blood clot in the legs
- Blood clot in the renal vein
- Blood clots
- Blood fluke
- Blood incompatibility - ABO
- Blood incompatibility - HDN
- Blood poisoning
- Blood pressure - low
- Blood transfusion - hemochromatosis
- Blood transfusion reaction
- Blount disease
- Blount's disease
- Blue spell - newborns
- Blunt myocardial injury
- Blurry vision - retinal artery occlusion
- Blurry vision - retinal vein occlusion
- Body lice
- Boil
- Boils
- Bone cancer
- Bone cancer - Ewing sarcoma
- Bone infarction
- Bone infection
- Bone marrow - myelofibrosis
- Bone marrow cancer - chronic lymphocytic leukemia
- Bone marrow failure - aplastic anemia
- Bone marrow transplant - graft-versus-host disease
- Bone neoplasm - Ewing sarcoma
- Bone thinning - hyperparathyroidism
- Bone thinning - parathyroid hyperplasia
- Bone tumor
- Bone tumor - benign
- Bone tumor - osteosarcoma
- Bonnevie-Ullrich syndrome
- Bony tumor of the ear canal
- BOO
- Borderline personality disorder
- Borreliosis
- Botulism
- Bourneville disease
- Bowel obstruction
- Bowlegs
- BPD
- BPH
- BPPV
- BPPV: dizziness- positional
- Brachial palsy
- Brachial plexopathy
- Brachial plexus dysfunction
- Brachial plexus injury in newborns
- Bradycardia
- Bradycardia-tachycardia syndrome
- Brain abscess
- Brain cancer - optic glioma
- Brain herniation
- Brain injury - concussion
- Brain injury - infants
- Brain lymphoma
- Brain stem glioma - children
- Brain tumor - children
- Brain tumor - metastatic (secondary)
- Brain tumor - primary - adults
- Brainstem glioma
- Branch retinal artery occlusion
- Branch retinal vein occlusion
- Branchial cleft cyst
- BRAO
- Breakbone fever
- Breast abscess
- Breast abscess - subareolar
- Breast cancer
- Breast cancer - male
- Breast cancer in men
- Breast cancer-male
- Breast infection
- Breast lump - benign
- Breast lump - fibroadenoma
- Breast lump - fibrocystic
- Breast lump - noncancerous
- Breast milk jaundice
- Breast-non-feeding jaundice
- Breastfeeding failure jaundice
- Breath holding spell
- Brief psychotic disorder
- Brief reactive psychosis
- Brief resolved unexplained event - BRUE
- Brill-Zinsser disease
- Briquet syndrome
- Brittle bone disease
- Brittle bones - premature infants
- Brittle hair
- Broken collar bone - newborn
- Bronchial asthma
- Bronchial rupture
- Bronchiectasis
- Bronchiolitis
- Bronchiolitis - RSV
- Bronchitis - acute
- Bronchitis - chronic
- Bronchopneumonia
- Bronchopneumonia - children
- Bronchopulmonary dysplasia
- Brown lung disease
- Brucellosis
- Bruised bladder
- Bruised kidney
- Bruton's agammaglobulinemia
- Bruxism
- BRVO
- Bubonic plague
- Budd-Chiari syndrome
- Buerger disease
- Bulbous nose
- Bulge-knee
- Bulimia
- Bulimia nervosa
- Bullous myringitis
- Bullous pemphigoid
- Bump on the eyelid
- Bunions
- Bunostomum phlebotomum
- Burkitt lymphoma
- Burkitt lymphoma - children
- Burnett syndrome
- Burning tongue syndrome
- Bursitis
- Bursitis of the heel
- Butterfly rash - SLE
- Butterfly rash-SLE
- Byssinosis
