[Clinical analysis of 6 cases with sinonasal malignant melanoma].

Objective: To explore clinical characteristics of sinonasal malignant melanoma and curative effect of the combined modality therapy.

Method: Clinical data of 6 cases with sinonasal malignant melanoma was retrospectively analyzed. All patients received surgery and postoperative radiotherapy.

[Analysis of diagnosis and treatment of 6 cases with esthesioneuroblastoma].

Objective: To explore the diagnosis and treatment and prognosis of esthesioneuroblastoma.

Method: The clinical data of 6 cases with esthesioneuroblastoma were analyzed retrospectively. One case was treated with radiotherapy alone; Four cases were treated with surgery combined with radiotherapy; One case was treated with surgery combined with radiotherapy and chemotherapy.

[The application of mastoid obliteration with homograft tooth in open method tympanoplasty].

Objective: To investigate the effect of open method tympanoplasty with mastoid obliteration with homograft tooth and reconstruction of the attic wall.

Method: Fifty-two cases with cholesteatoma or skeletal ulcer otitis media were performed the open method tympanoplasty with mastoid obliteration with homograft tooth and reconstruction of the attic wall after radical mastoidectomy.

Result: External auditory canals of 48 patients were normal in appearance.