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N D Mendoza

Publications and source records attributed to N D Mendoza.

8 recordsLinked to original sources

Isolated, benign, intraorbital schwannoma arising from the supraorbital nerve. Case report and review of the literature.

The authors describe the rare case of a 65-year-old man, with absent clinical evidence of von Recklinghausen's disease, harbouring an isolated, benign schwannoma of the right supraorbital nerve. The patient presented a progressive, painless proptosis of the eye for the past 2 years, did not complain of any intra- or periorbital pain, and did not experience any form of visual disturbance or field defect. The lesion was completely resected using a fronto-orbitozygomatic approach. The clinicopathological, radiological and surgical features are discussed, and the literature on supraorbital nerve schwannomas reviewed. To the authors' knowledge the fronto-orbitozygomatic approach has not been previously reported for the removal of supraorbital nerve tumors.

Aged↗

The operative learning curve for vestibular schwannoma excision via the retrosigmoid approach.

The results of 127 operations for vestibular schwannomata via the retrosigmoid approach performed by a single surgeon over a 24-year period are examined. Facial nerve preservation and function, morbidity and mortality were recorded prospectively for three consecutive 8-year periods to assess the effect of increasing surgical experience on outcome. Rates of facial nerve preservation and good function (House grade I & II) improved over the study period. This reached statistical significance for medium-sized tumours, indicating that the effect was independent of tumour size, whose distribution varied through the series. Improvements occurred independently in the ability to preserve the nerve and its function. Analysis of the percentage of good facial nerve outcomes achieved over time indicated that the improvements occurred mainly between the 40th and 100th cases. Overall mortality was 3% and there were no deaths in the final time period. The implications of these findings for patient care and surgical training are discussed.

Adolescent↗

Recurrent craniopharyngioma in the posterior fossa.

Craniopharyngioma situated in the posterior fossa is rare. It has been unclear whether such lesions arise primarily in this site or represent direct spread from a suprasellar focus. We report a patient with recurrent craniopharyngioma which had extended into the posterior fossa as far as the cerebellopontine angle through the tentorial hiatus with evidence that it had done so directly. A further separate lesion of similar signal characteristics on MRI scan, lying in the prepontine area, probably represented a seeding from the suprasellar area.

Cranial Fossa, Posterior↗