Ethmoid sinusectomy	Sphenoid sinusectomy
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External frontoethmosphenoidectomy (procedure)
	External frontoethmosphenoidectomy
	externe excisie van sinus frontalis, sinus ethmoidalis en sinus sphenoidalis

Id	232506006
Status	Primitive

Method	Excision - action
Procedure site - Direct	Ethmoid sinus structure

Method	Excision - action
Procedure site - Direct	Sphenoid sinus structure