| | structuur van choana (lichaamsstructuur) |  |  | structuur van choana |  |  | apertura nasalis posteriorchoana
 choane
 
 |  |  | Structure of choana |  |  | ChoanaPosterior naris
 
 | 
 | | Id | 71717001 |  | Status | Primitive | 
| PALGA thesaurus simple reference set for pathology | 
| SNOMED CT to ICD-O simple map | C11.3 | 
 |