R in Rare Diseases
- Rotor syndrome
- Roussy Levy hereditary areflexic dystasia
- Rowley-Rosenberg syndrome
- Roy Maroteaux Kremp syndrome
- Rozin Hertz Goodman syndrome
- Rubella
- Rubella virus antenatal infection
- Rubella- congenital
- Rubinstein Taybi like syndrome
- Rubinstein-Taybi syndrome
- Rud Syndrome
- Rudd Klimek syndrome
- Rufous oculocutaneous albinism
- Rumination disorder
- Ruvalcaba Churesigaew Myhre syndrome
- Ruvalcaba syndrome
- Ruzicka Goerz Anton syndrome
