retraction ring - RPET
- retrolingual
- retrolisthesis
- retromalleolar region lateral
- retromalleolar region medial
- retromammary
- retromammary abscess
- retromammary bursa
- retromammary mastitis
- retromandibular
- retromandibular tender point
- retromandibular triangle
- retromandibular vein
- retromastoid
- retromolar
- retromolar fossa
- retromolar glands
- retromolar pad
- retromolar papilla
- retromolar trigone
- retromorphosis
- retromylohyoid space
- retronasal
- retroparotid
- retropatellar fat pad
- retroperistalsis
- retroperitoneal
- retroperitoneal abscess
- retroperitoneal fibrosis
- retroperitoneal hematoma
- retroperitoneal hemorrhage
- retroperitoneal hernia
- retroperitoneal lymphadenectomy
- retroperitoneal organ
- retroperitoneal pneumography
- retroperitoneal space
- retroperitoneum
- retroperitonitis
- retropharyngeal
- retropharyngeal abscess
- retropharyngeal lymph nodes
