| r 18 | |
| r(22) | |
| r14 | |
| r15 | |
| r21 | |
| r4 | |
| r6 | |
| R9 | |
RA | |
| Rabbit Fever | |
| Rabies | |
| Rabson-Mendenhall Syndrome | |
| Radial Aplasia-Amegakaryocytic Thrombocytopenia | |
| Radial Aplasia-Thrombocytopenia Syndrome | |
| Radial Head Subluxation | |
| Radial keratotomy (RK) for nearsightedness | |
| Radiation Disease | |
| Radiation Effects | |
| Radiation Illness | |
| Radiation Injuries | |
| Radiation Reaction | |
| Radiation Sickness | |
| Radiation Syndromes | |
| Radiation therapy for bladder cancer | |
| Radiation Therapy for Cancer | |
| Radiation therapy for cancer pain | |
| Radiation therapy for endometrial cancer |  Top |
| Radiation therapy for lymphoma and leukemia | |
| Radiation therapy for nonmelanoma skin cancer | |
| Radiation therapy for prostate cancer | |
| Radiation treatment for melanoma | |
| Radical inguinal orchiectomy for testicular cancer | |
| Radical prostatectomy | |
| Radicular Dentin Dysplasia | |
| Radicular Neuropathy, Sensory, Recessive | |
| Radioactive iodine | |
| Radioactive iodine for hyperthyroidism | |
| Radiofrequency palatoplasty for snoring | |
| Radon | |
| Ramsay-Hunt Syndrome | |
| Rape | |
| Rape or Sexual Abuse | |
| Raphe Nucleus Encephalopathy | |
| Rapp Hodgkin Syndrome | |
| Rapp-Hodgkin (hypohidrotic) ectodermal dysplasia syndrome | |
| Rash, Age 11 and Younger | |
| Rash, Age 12 and Older | |
| Rasmussen's Syndrome | |
| RAU | |
| Rautenstrauch-Wiedemann Syndrome | |
| Rautenstrauch-Wiedemann Type Neonatal Progeria | |
| Raynaud's Phenomenon | Top |
| Razor Bumps | |
RC | |
| RCC | |
RD | |
| RDD | |
RE | |
| Recessive X-linked Ichthyosis | |
| Recklinghausen's phakomatosis | |
| Rectal Cancer | |
| Rectal cancer: Treatment - Health Professional Information [NCI PDQ] | |
| Rectal cancer: Treatment - Patient Information [NCI PDQ] | |
| Rectal Problems | |
| Rectal Prolapse | |
| Rectoperineal Fistula | |
| Recurrent Respiratory Papillomatosis | |
| Recurrent Scarring Aphthae | |
| Recurrent Vomiting | |
| Red Measles | |
| Reducing Medical Costs | |
| Reducing Medication Costs | |
| Redwater Fever | |
| Reflex Neurovascular Dystrophy | |
| Reflex Sympathetic Dystrophy Syndrome | |
| Refractory Celiac Disease | |
| Refractory Sprue | |
| Refsum Disease | |
| Rehabilitation exercises for an ankle sprain | |
| Rehabilitation for a meniscus tear | Top |
| Rehabilitation for multiple sclerosis | |
| Reifenstein Syndrome | |
| Reiger Anomaly-Growth Retardation | |
| Reiki | |
| Reimann Periodic Disease | |
| Reimann's Syndrome | |
| Reiter's Syndrome | |
| Relapsing Febrile Nodular Nonsuppurative Panniculitis | |
| Relapsing Perichondritis | |
| Relapsing Polychondritis | |
| Relieving Menstrual Pain | |
| Remnant Removal Disease | |
| Removal of Nasal Adhesions | |
| Removal of the breast (mastectomy) for breast cancer | |
| Removing Splinters | |
| Renal Adenocarcinoma | |
| Renal Agenesis | |
| Renal Agenesis, Bilateral | |
| Renal cell cancer: Treatment - Health Professional Information [NCI PDQ] | |
| Renal cell cancer: Treatment - Patient Information [NCI PDQ] | |
| Renal cell carcioma | |
| Renal Diet | |
| Renal Disease, Chronic | |
| Renal Dysplasia and Retinal Aplasia | |
| Renal Dysplasia-Blindness, Hereditary | Top |
| Renal Failure, Acute | |
| Renal Glucosuria | |
| Renal Glycosuria | |
| Renal pelvis, transitional cell cancer: Treatment - Health Professional Information [NCI PDQ] | |
| Renal pelvis, transitional cell cancer: Treatment - Patient Information [NCI PDQ] | |
| Renal Reabsorption of Carnitine, Defect | |
| Renal-Oculocerebrodystrophy | |
| Renal-Retinal Dysplasia | |
| Renal-Retinal Dysplasia with Medullary Cystic Disease | |
| Renal-Retinal Syndrome | |
| Rendu-Osler-Weber Syndrome | |
| Repair of a Deviated Septum (Septoplasty) | |
| Repair of bladder prolapse (cystocele) or urethra prolapse (urethrocele) | |
| Repair of Choanal Atresia | |
| Repair of Nasal Septal Perforation | |
| Repair of Oromaxillary Fistula | |
| Repair of rectocele or enterocele | |
| Repair of vaginal wall prolapse (vaginal vault prolapse) | |
| Reptile Bites | |
| Rescue Breathing | |
| Resiliance to Stress Calculator | |
| Respiratory Distress Syndrome, Infant | |
| Respiratory Papillomatosis | |
| Respiratory Problems, Age 11 and Younger | |
| Respiratory Problems, Age 12 and Older | Top |
| Respiratory Syncytial Virus (RSV) Infection | |
| Responding to teen substance use | |
| Rest, Ice, Compression, and Elevation (RICE) | |
| Restless Legs Syndrome (RLS) | |
| Restrictive Cardiomyopathy | |
| Restrictive operations -stomach stapling (vertical banded gastroplasty) or gastric banding | |
| Rethore Syndrome (obsolete) | |
| Retinal Aplastic-Cystic Kidneys-Joubert Syndrome | |
| Retinal Cone Degeneration | |
| Retinal Cone Dystrophy | |
| Retinal Cone-Rod Dystrophy | |
| Retinal Detachment | |
| Retinal Telangiectasis | |
| Retinitis Pigmentosa | |
| Retinitis Pigmentosa and Congenital Deafness | |
| Retinoblastoma | |
| Retinocerebellar Angiomatosis | |
| Retinocochleocerebral Vasculopathy | |
| Retinoic Acid Embryoppathy | |
| Retinopathy of Prematurity | |
| Retinopathy, Arteriosclerotic | |
| Retinopathy, Diabetic | |
| Retinopathy, Diabetic | |
| Retinopathy, Hypertensive | |
| Retinoschisis | Top |
| Retraction Syndrome | |
| Retrobulbar Neuropathy | |
| Retrolental Fibroplasia (obsolete) | |
| Retrolenticular Syndrome | |
| Retroperitoneal Fibrosis | |
| Retropubic suspension for urinary incontinence in women | |
| Rett Syndrome | |
| Reverse Coarction | |
| Reye's Syndrome | |
RG | |
| RGS | |
RH | |
| Rh Sensitization During Pregnancy | |
| rhabdomyosarcoma in lung cyst | |
| Rheumatic Chorea | |
| Rheumatic Purpura | |
| Rheumatoid Arthritis | |
| Rhinoplasty | |
| RHS | |
RI | |
| Rib Fracture | |
| Rib Gap Defects with Micrognathia | |
| RICE (Rest, Ice, Compression, and Elevation), First Aid | |
| Rickets | |
| Rickets, Vitamin D Deficiency | |
| Rieger Syndrome | |
| Riley-Day Syndrome | |
| Riley-Smith syndrome | Top |
| Ring 14 | |
| Ring 15 | |
| Ring 15, Chromosome | |
| Ring 15, Chromosome (mosaic pattern) | |
| Ring 18 | |
| Ring 21 | |
| Ring 21, Chromosome | |
| Ring 22 | |
| Ring 22, Chromosome | |
| Ring 4 | |
| Ring 4, Chromosome | |
| Ring 6 | |
| Ring 6, Chromosome | |
| Ring 9 | |
| Ring 9, Chromosome | |
| Ring Chromosome 14 | |
| Ring Chromosome 18 | |
| Ringing in the Ears (Tinnitus) | |
| Ringworm of the Scalp or Beard | |
| Ringworm of the Skin | |
| Ritter Disease | |
| Ritter-Lyell Syndrome | |
RL | |
| RLS (Restless Legs Syndrome) | |
RM | |
| RMSF | |
RO | |
| Roberts SC-Phocomelia Syndrome | Top |
| Roberts Syndrome | |
| Roberts Tetraphocomelia Syndrome | |
| Robin Anomalad | |
| Robin Complex | |
| Robin Syndrome | |
| Robinow Dwarfism | |
| Robinow Syndrome | |
| Rocky Mountain Spotted Fever | |
| Rod Myopathy | |
| Rokitansky's Disease | |
| Romano Ward Syndrome | |
| Romano-Ward Long QT Syndrome | |
| Romberg Syndrome | |
| Root canal treatment | |
| Root planing and scaling for gum disease | |
| Rootless Teeth | |
| ROP | |
| Rosacea | |
| Rosai-Dorfman Disease | |
| Rosenberg Chutorian Syndrome | |
| Rosenfeld-Kloepfer syndrome | |
| Roseola | |
| Rosewater Syndrome | |
| Rotator Cuff Disorders | |
| Rotator cuff home rehabilitation exercises | Top |
| Rotator cuff repair | |
| Rotavirus | |
| Rothmund Thomson Syndrome | |
| Roussy Levy Syndrome | |
| Royal Free Disease | |
RP | |
| RP | |
RS | |
| RS | |
| RS, X-Linked | |
| RSDS | |
| RSH Syndrome | |
| RSS | |
| RSTS | |
| RSV (Respiratory Syncytial Virus) Infection | |
RT | |
| RTS | |
| RTS | |
RU | |
| Rubber band ligation for hemorrhoids | |
| Rubella | |
| Rubella (German Measles) | |
| Rubella, Congenital | |
| Rubeola (Measles) | |
| Rubinstein syndrome | |
| Rubinstein Taybi (RTS) Broad Thumb-Hallux syndrome | |
| Rubinstein Taybi Syndrome | |
| Ruhr's Syndrome | |
| Ruptured Disc | Top |
| Ruptured Neck Disc | |
| Russell Silver Syndrome (RSS) | |
| Russell Syndrome | |
| Russell's Diencephalic Cachexia | |
| Russell's Syndrome | |
| Russell-Silver Dwarfism | |
| Russian Autumnal Encephalitis | |
| Ruvalcaba Syndrome | |
| Ruvalcaba-Myhre-Smith syndrome (RMSS) | |
RW | |
| RWS | |
RY | |
| Rye Grass Pollen Extract | |
