1,720,984 research outputs found
Nasal paraganglioma. A case report
No full textNonchromaffin paragangliomas or chemodectomas arise in paraganglia distributed in various parts of the body. The jugular bulb, the vagal body and the bifurcation of the carotid artery are the most common sites of origin of paraganglioma in the head and neck region. Paragangliomas in the nose and paranasal sinuses are extremely rare and very few cases of definite paraganglioma arising primarily in the nose or paranasal sinuses have been reported. The paraganglioma is a slow-growing tumour that produces nasal obstruction, profuse epistaxis and facial swelling. Complete excision of the glomus tumour is normally curative. We report a case of nasal paraganglioma and discuss the diagnosis and therapy
Harmonic versus impulsive acceleration testing of the vestibulo-ocular reflex in normal humans.
No full textVestibulo-ocular reflex (VOR) was tested in 9 normal humans by using both
harmonic (sinusoidal) and impulsive (post-rotatory) angular accelerations. VOR
gain and main time constant were 0.49 +/- 0.20 and 15.48 +/- 2.26 s,
respectively, when computed from sinusoidal responses, 0.45 +/- 0.17 and 14.28
+/- 3.07 s when computed from impulse responses. Paired comparison could not
prove statistically significant differences between the two sets of data. The
conclusion is drawn that, in normals, equivalent information about VOR static and
dynamic characteristics can be derived from either harmonic acceleration or
post-rotatory tests
Unusual extracranial complications of otitis media in a young HIV patient: retropharyngeal and Mouret’s abscess
No full textSince the introdution of antibiotic therapy, the incidence of intra- and extracranial suppurative complication of acute and chronic purulent otitis media has sharply decreased. In particular, reports of laterocervical abscesses secondary to this disorder are quite rare, not more than twenty cases of Bezold's or Mouret's abscesses having been reported in the literature during the last ten years. The authors present a case of retropharyngeal and Mouret's abscess developed as a consequence of acute purulent otitis media in a Young AIDS patient. True otologic manifestations of AIDS are rare while the incidental association of otologic disease with AIDS is more common. The development of complication in the present case is favoured by the patients severe immunodepression
Harmonic versus impulsive acceleration testing of the vestibulo-ocular reflex in normal humans.
No full textVestibulo-ocular reflex (VOR) was tested in 9 normals by using both harmonic and impulsive (post-rotary) angular accelerations. From both responses VOR gain and phase shift were computed by considering nystagmus slow-phase velocity. Paired comparison couldn't prove statistically significant differences between the two sets of data. It is concluded that, in normals, equivalent information about VOR static and dynamic properties can be obtained from either harmonic acceleration or post-rotary test
Use of serum markers in the diagnosis and management of laryngeal cancer
No full textMany neoplastic diseases are reported to be accompanied by the presence or associated with an increase in biological substances identified as tumour markers. The most common markers implicated in head and neck cancers are CEA, TPA, LASA, SCC, CA 19-9, and ferritin. These markers (except SCC) were evaluated in 50 patients with a laryngeal carcinoma, in 20 patients with benign lesions, and in 20 healthy subjects. The results show for each marker assayed the following sensitivity values (true positives): CEA, 10%; CA 19-9, 30%; TPA, 30%; LASA, 90%; ferritin, 60%. Specificity (true negatives) was as follows: CEA, 85%; CA 19-9, 99.4%; TPA, 98%; LASA, 99.8%; ferritin, 97%. LASA and ferritin seem to be the most suitable markers for patient monitoring because of their higher sensitivity in all phases of cancer disease
Energy consumption of locomotion with orthosis versus Parastep-assisted gait: a single case study
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