Main Campus: Chesterfield, MO 63017 | 
Diseases & Conditions
- RA
- Rabbit fever
- Rabies
- Raccoon bites - rabies
- Radial head dislocation
- Radial nerve dysfunction
- Radial nerve palsy
- Radiation cystitis
- Radiation enteritis
- Radiation enteropathy
- Radiation-induced small bowel injury
- Ragpicker's disease
- Ramsay Hunt syndrome
- Ranula
- Rapid heart rate - PSVT
- Rapid heartbeat - WPW
- Rapidly progressive glomerulonephritis
- Rapidly progressive glomerulonephritis with pulmonary hemorrhage
- Rash - pityriasis rosea
- Rat tapeworm
- Rat-bite fever
- Raynaud phenomenon
- Raynaud's phenomenon
- Raynaud's phenomenon - scleroderma
- Raynaud's phenomenon-scleroderma
- RDS - infants
- Reactive arthritis
- Reactive attachment disorder of infancy or early childhood
- Rebound headaches - tension
- Rectal abscess
- Rectal cancer
- Rectal inflammation
- Rectal intussusception
- Rectal lump
- Rectal prolapse
- Recurrent leg pain and cramping
- Recurrent polyserositis
- Red mite
- Reflex sympathetic dystrophy syndrome
- Reflux - Barrett
- Reflux - infants
- Reflux esophagitis
- Reflux esophagitis - children
- Reflux nephropathy
- Refractive error - nearsightedness
- Refractory anemia
- Regional enteritis
- Reifenstein syndrome
- Reiter syndrome
- Relapsing fever
- Renal and urological disorders
- Renal artery embolism
- Renal artery occlusion
- Renal artery stenosis
- Renal calculi
- Renal calculi - hydronephrosis
- Renal cancer
- Renal cell carcinoma
- Renal disease - atheroembolic
- Renal failure
- Renal failure - acute
- Renal failure - chronic
- Renal failure - end stage
- Renal hypertension
- Renal medullary necrosis
- Renal papillary necrosis
- Renal pelvis or ureter cancer
- Renal rickets
- Renal tubular acidosis - distal
- Renal tubular acidosis - proximal
- Renal tubular acidosis type I
- Renal tubular acidosis type II
- Renal underperfusion
- Renal vein thrombosis
- Renovascular hypertension
- Repeated nightmares
- Respiratory acidosis
- Respiratory alkalosis
- Respiratory diphtheria
- Respiratory distress syndrome in infants
- Respiratory failure
- Respiratory syncytial virus (RSV)
- Respiratory syncytial virus immune globulin
- Restless legs syndrome
- Restrictive cardiomyopathy
- Retained fetal lung fluid
- Retarded ejaculation
- Retinal artery occlusion
- Retinal detachment
- Retinal vein occlusion
- Retinitis pigmentosa
- Retinoblastoma
- Retinopathy - diabetic
- Retinopathy of prematurity
- Retractile testes
- Retro-bulbar neuritis
- Retrocalcaneal bursitis
- Retrograde ejaculation
- Retrolental fibroplasia
- Retroperitoneal fibrosis
- Retroperitoneal inflammation
- Retroperitonitis
- Retropharyngeal abscess
- Retroversion of the uterus
- Rett syndrome
- Reye syndrome
- Rh incompatibility - HDN
- Rhabdomyolysis
- Rhabdomyosarcoma
- Rheumatic aortic stenosis
- Rheumatic chorea
- Rheumatic fever
- Rheumatic fever - aortic stenosis
- Rheumatic fever - Sydenham chorea
- Rheumatoid arthritis
- Rheumatoid lung
- Rheumatoid lung disease
- Rheumatoid nodules
- Rheumatoid pneumoconiosis
- Rhinitis - nonallergic
- Rhinophyma
- Rhinoscleroma
- Rhinosinusitis
- Rice-field fever
- Richardson-Steele-Olszewski syndrome
- Rickets
- Rickettsia akari
- Rickettsialpox
- Right aortic arch with aberrant subclavian and left ligamentum
- Right aortic arch with aberrant subclavian and left ligamentum ateriosus
- Right-sided heart failure
- Right-sided heart failure - cor pulmonale
- Right-to-left cardiac shunt
- Right-to-left circulatory shunt
- Riley-Day syndrome
- Ringworm
- Ringworm - body
- Ringworm - foot
- Ringworm - groin
- Ringworm - scalp
- Ringworm of the body
- Ringworm of the scalp
- Ritter disease
- RLS
- Rock fever
- Rocky Mountain spotted fever
- Rod Cone dystrophy
- Rodent ulcer
- ROP
- Rosacea
- Roseola
- Rosewater syndrome
- Rotator cuff problems
- Rotator cuff tendinitis
- Rotavirus infection
- Rotavirus infection - gastroenteritis
- Round worm - trichuriasis
- Roundback
- Roundworm - ascariasis
- Roundworm - strongyloidiasis
- Roundworm - trichinosis
- RP
- RSDS
- RSS
- RSV
- RTA - distal
- RTA - proximal
- RTT
- Rubella
- Rubeola
- Rubeola - SSPE
- Rubinstein syndrome, RTS
- Rubinstein-Taybi syndrome
- Rumination disorder
- Runner's knee
- Rupture
- Ruptured disk
- Ruptured eardrum
- Russell-Silver syndrome
