• RA [rheumatoid arthritis]
  • RA, Felty syndrome
  • Rabies
  • Raccoon bite
  • Rape
  • RAS [renal artery stenosis]
  • Rash
  • Raynaud phenomenon
  • Raynaud, CREST
  • Reactive airways disease
  • Reactive arthritis
  • Rectal cancer
  • Rectal pain (evaluation of)
  • Reflex sympathetic dystrophy
  • Reflux esophagitis
  • Regional ileitis
  • Reiter syndrome
  • Reiter's syndrome
  • Reiters syndrome
  • Renal artery stenosis
  • Renal calculi
  • Renal cell carcinoma
  • Renal cystic disease
  • Renal tubular acidosis
  • Renovascular hypertension
  • Repetitive strain injury
  • Respiratory syncytial virus infection
  • Restless legs syndrome
  • Retinal detachment
  • Retinal vein occlusion
  • Retinitis pigmentosa
  • Retinoblastoma
  • Retropharyngeal abscess
  • Reye syndrome
  • Rh incompatibility
  • Rhabdomyolysis
  • Rhabdomyosarcoma
  • Rheumatic fever
  • Rheumatoid arthritis
  • Rhinitis
  • Rhinosinusitis
  • Rib fractures
  • Rickets
  • Rickettsial infections
  • Ringworm
  • RLS [restless legs syndrome]
  • RMSF [Rocky Mountain spotted fever]
  • Rocky Mountain spotted fever
  • Rosacea
  • Rosary pea ingestion
  • Roseola
  • Rotator cuff injury
  • Rotavirus
  • Rotor syndrome
  • Roundworm, intestinal
  • Routine prenatal care
  • RP [retinitis pigmentosa]
  • RSD [reflex sympathetic dystrophy]
  • RSI [repetitive stress injury]
  • RSV [respiratory syncytial virus infection]
  • RTA [renal tubular acidosis]
  • Rubella
  • Rubeola