[Uncommon tumor and pseudotumor lesions of the submandibular fossa].

The histological examination of the salivary gland tumors is a very important step in the diagnostic approach of the lesions, on which depends the success of therapeutic outcome. Some surprises may occur; four examples were reported. In one case the lesion was not a tumor but a tuberculous lymphadenitis; another showed a Destombes Rosai Dorfman syndrome.

[Definition of normal criteria of provoked otoacoustic emission in the newborn infant].

Evoked otoacoustic emissions (EOE) were recorded with ILO88 in a group of 254 neonates (n = 508 ears) in order to determine the normative data. In this study, it was found that: (i) the mean EOE amplitude was 20.2 dB SPL, (ii) the EOE amplitude of the right ear was significantly higher than those of the left ear, (iii) the mean time necessary to record EOE in both ears was around three minutes, and (iv) EOE spectrum was large (mean = 638-5,611 Hertz).

[Cervicofacial cancerology: complications of implantable systems of venous access. Prospective study].

Objective: Implantable systems for venous access are widely used in cervicofacial cancer. We prospectively evaluated complications related to this type of venous access in our cancer patients.

Methods: From September 1991 to September 1993, an implantable system for venous access was installed in 164 patients with epidermoid carcinoma of the upper respiratory and digestive tracts.

Investigation of hospital-acquired infections due to Alcaligenes denitrificans subsp. xylosoxydans by DNA restriction fragment length polymorphism.

We demonstrate that DNA restriction fragment length polymorphism determined by pulsed-field gel electrophoresis is very useful in the investigation of the epidemiology of hospital-acquired infections caused by Alcaligenes denitrificans subsp. xylosoxydans. This approach showed that hospital-acquired infections caused by this opportunistic pathogen over a 6-month period in 10 patients hospitalized in an intensive care unit and a surgical unit were not a true outbreak.

[Scopulariopsis brevicaulis otomycosis after tympanoplasty].

We report a case of otomycosis due to Scopulariopsis brevicaulis in a patient who has undergone tympanoplasty 3 months before. Mycological finding led us to consider this fungus as the causative agent. Whereas in vitro studies show a better efficiency of azole derivatives, cure was obtained with nystatine after two treatment failures in our patient.

[Role of the basal cochlea in the genesis of evoked acoustic oto-emissions in the subject with normal hearing].

The aim of this study was to determine the role of the basal part of the cochlea (8-16 kHz) on the genesis of evoked otoacoustic emissions (EOEs) in normally hearing subjects (0.25-8 kHz thresholds below or equal to 20 dBHL). This study was realized on 43 subjects.

[Imerslund-Najman-Gräsbeck anemia. Apropos of a case].

Imerslund-Najman-Gräsbeck anemia is an infrequent disease with an autosomal recessive pattern of inheritance. The characteristic anomaly is selective malabsorption of vitamin B12 by the ileal mucosa. Diagnosis rests on a positive family history and on the demonstration of megaloblastic anemia with proteinuria.

Postlaryngectomy voice restoration. A prospective study in 83 patients.

From July 1985 until May 1990, 83 patients underwent a total laryngectomy. We prospectively studied voice restoration in 81 of them (two died postoperatively). Esophageal voice was used by 19 patients; a tracheoesophageal procedure (myomucosal shunt, primary or secondary puncture with Blom-Singer prosthesis) by 41; and 21 patients had no voice restoration.

[Upper functional dysphagia. Apropos of 33 cases].

Upper functional dysphagia, occurring in the absence of tumoral obstruction, includes swallowing disorders caused by a disturbance of the reflex, velopharyngoesophageal time of deglutition. Thirty-three patients with such disorders have been studied. Fourteen suffered from a neurologic affection (including 4 brainstem tumors and 6 cerebrovascular neurologic disease), 10 from myopathy, 9 from a localized affection of the upper sphincter of the esophagus.

[An analytic study of cases of childhood diabetes in a pediatric department in Tunis].

Insulin-dependent diabetes mellitus is common in Tunisia. Eighty-six pediatric cases managed at the diabetes clinic of a department of pediatrics in Tunis from 1979 through 1989 were studied. Relevant clinical and biological findings were abstracted from case-records.

[Vocal restoration by tracheo-esophageal fistula. Evaluation of a 5 years' experience].

Between december 1985 and august 1990, 70 patients with total laryngectomy had their voice restaured by creation of tracheo-esophageal fistula. The tracheo-esophageal fistula was created during laryngectomy in 33 cases (20 punctures with Blom Singer prostheses, 13 surgical shunts), a few weeks later after surgery of radiotherapy in 17 cases or when production of esophageal voice feld in 20 cases. No major complication was observed.

[Amyloidosis disclosed by ORL manifestations].

Amylosis is characterized by an infiltration of acellular substance into the tissues. This substance is mainly made of protein molecules. This disease is primary or secondary to general disorders.

[Voice restoration after total laryngectomy by tracheoesophageal fistula].

Between December 1985 and December 1988, 34 patients with total laryngectomy had their voice restored by creation of tracheoesophageal fistula. A shunt was created in 13 cases of total laryngectomy. In 21 others, the technique used was tracheosophageal puncture with placement of a Blom-Singer prosthesis.