Eponyms beginning with R
- Rietti-Greppi-Micheli syndrome II
- Riga's aphthae
- Riga's boil
- Riga's papilloma
- Riga-Fede disease
- Rigler's rule for cardiomegaly
- Rigler's sign
- Rigler's triad
- Riley-Day syndrome
- Riley-Shwachman syndrome
- Riley-Smith syndrome
- Riley-Smith syndrome
- Rimoin's syndrome
- Rimoin-Mcalister syndrome
- Ringer's lactated injection
- Ringer's solution
- Ringer’s irrigation
- Rinne's test
- Rivinus' canals
- Rivinus' gland
- Rivinus' notch
- Rivinus’ incisure
- Rivinus’ ligament
- Roberton’s syndrome
- Roberts' pseudothalidomide syndrome