title: Carcinoma of the external auditory canal.
abstract: Carcinoma of the external auditory canal is one of the most inaccessible areas of the body. It is a rare malignant neoplasm with an aggressive nature and an overall poor prognosis. In a ten year period, 16 patients were treated in King Chulalongkorn Memorial Hospital. From TNM staging proposed by the University of Pittsburgh, the authors found T1 = 1, T2 = 6, T3 = 5, T4 = 4 cases. In 14 patients who were operated on (radical mastoidectomy in 8, lateral temporal bone resection in 5, sleeve resection in 1), 7 had cured (50%), 7 were recurrence. 6 cases of recurrence developed in patients with radical mastoidectomy, 1 case with lateral temporal bone resection. The overall cure rate in stage I-II = 85.71% (6/7) but only 11.11% (1/9) in the advanced stages (III-IV). The present data suggest that in early cancer (stage I-II) the lateral temporal bone resection with postoperative radiation is better than radical mastoidectomy with postoperative radiation.
authors.affiliation: Department of Otolaryngology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand.
authors.forename: Permsarp
authors.initials: P
authors.lastname: Isipradit
authors.forename: Winai
authors.initials: W
authors.lastname: Wadwongtham
authors.forename: Songklot
authors.initials: S
authors.lastname: Aeumjaturapat
authors.forename: Phooripan
authors.initials: P
authors.lastname: Aramwatanapong
mesh_terms: D000328:Adult; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis* / Q000628:therapy*; D004424:Ear Canal; D004428:Ear Neoplasms / Q000175:diagnosis* / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012189:Retrospective Studies; D013785:Thailand; D016896:Treatment Outcome