Origin oriented management of inverted papilloma of the frontal sinus.
BACKGROUND
Despite the great progress in endoscopic management of inverted papilloma (IP), involvement of the frontal sinus (FS) remains a challenge.


METHODS
Six cases of FS IP were assessed. Extent of surgery included simple frontal recess clearance, extended frontal sinusotomy, and modified Lothrop approach. There was no need for adjuvant frontal trephination or an external osteoplastic flap.


RESULTS
FS involvement was observed in 6 out of 119 cases of IP (5%). In one case, IP was originating from the FS and in four it was extending to the FS. The sixth case had a wide origin from the anterior ethmoid and FS. Complete resection of FS IP was achieved in all cases with a single incidence of CSF leak. No recurrence was identified after a follow-up period of an average of 27 months.


CONCLUSIONS
FS IP originating outside FS can be delivered transnasally with or without frontal ostium widening and preserving FS mucosa and bone. Inverted papillomata originating from FS proper and those with origin from inside and outside  the FS can also be resected tranasnasally after widening of the frontal ostium with removal of surrounding mucosa and drilling or curettage of underlying bone at attachment sites.
Department of Otorhinolaryngology, Cairo University, Cairo, Egypt. rkamel55@hotmail.com
R H
RH
Kamel
A F
AF
Abdel Fattah
A G
AG
Awad
D000328:Adult; D015331:Cohort Studies; D004724:Endoscopy; D005004:Ethmoid Bone / Q000601:surgery; D005260:Female; D005624:Frontal Bone / Q000601:surgery; D005626:Frontal Sinus; D006801:Humans; D008297:Male; D008875:Middle Aged; D009300:Nasal Septum / Q000601:surgery; D018308:Papilloma, Inverted / Q000473:pathology* / Q000601:surgery*; D010255:Paranasal Sinus Neoplasms / Q000473:pathology* / Q000601:surgery*; D016896:Treatment Outcome