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Biomedical subjects

M Goullet de Rugy

Publications and source records attributed to M Goullet de Rugy.

8 recordsLinked to original sources

[Interest of PET/CT scan fusion to assess mandible involvement in oral cavity and oro pharyngeal carcinomas].

UNLABELLED: The aim of the study is to assess mandible involvement in oral cavity and oropharyngeal carcinomas. OBJECTIVE: To evaluate interest of fusion of Positron Emission Tomography (PET) with Computed Tomography scan (CT scan). METHOD: Eight patients were included in this prospective study. Each patient underwent PET and CT scan of the head and neck before surgery including tumorectomy and mandibulectomy. We compared results of PET- CT fusion with histologic examinations. RESULTS: Oral cavity (6), oropharyngeal (2) carcinoma: Mandibular invasion was suspected by PET-CT in 3 cases, but was confirmed in histological examination in only 2 cases. In 5 cases, PET-CT did not find mandibular invasion; this was confirmed in histological examination in all cases. Sensibility of PET-CT fusion was 100%, specificity was 83%. Positive predictive value was 66% and negative predictive value was 100%. DISCUSSION: PET-CT fusion provided maximal sensitivity. Specificity was better than for MRI but less than CT-scan. There were no false negatives and the false positive rate was 33%. CONCLUSION: PET-CT fusion is interesting to predict mandible involvement. Further studies are necessary to confirm these preliminary results.

Aged↗

[Utility and limitations of speech audiometry testing in the detection of occupational noise-induced hearing loss: a comparative study in two groups in the hospital setting].

OBJECTIVE: The objective of this study is the evaluation of the calculation of 100% intelligibility threshold and noise resistance index as a monitoring test in populations exposed to noise in their work environment. METHOD: This is a retrospective exposed-unexposed study as the exposure to the risk factors took place before the survey. The exposed subjects were chosen in principle on sonometric criteria and the unexposed subjects among employees whom we believe were not exposed. The exploration method included history taking, clinical examination, free field audiometry and speech audiometry with background noise. RESULTS: The exposed population has a 100% intelligibility threshold on average equal to 29.69 dB, significantly higher than in the unexposed population where it is calculated at 25.30 dB (p = 0.07). The noise resistance index varies with age (p = 0.04). CONCLUSION: Our study shows the existence of a significant hearing difference between two populations with different noise exposure. It demonstrates a relationship between a hearing loss risk factor such as noise and the occurrence of the "professional hearing loss" disorder. The calculation of the 100% intelligibility index and the noise resistance index advantageously complements tonal audiometry. These procedures provide a better approach to the social impact of hearing loss but were not useful in the detection of hearing loss.

Adult↗

[Parathyroid cysts].

Two cases of parathyroid cysts are described. One cyst was symptomatic, the other was discovered while performing thyroidectomy. In both cases, the cysts were non-functional. There have been reports of functional cysts occurring in a lesser proportion and causing primary hyperthyroidism. These benign cysts are rare (300 cases reported in the literature). Surgery is the treatment of choice in most cases.

Adult↗

Facial nerve: vascular-related anatomy at the stylomastoid foramen.

We dissected 30 facial nerves in fresh cadavers after arterial casting with red latex to provide specific information about the arterial-related anatomy of the trunk of the facial nerve from the stylomastoid foramen to its bifurcation. We found that a wide anatomic variability does exist. The trunk of the facial nerve was in proximity to the stylomastoid artery, which originated from the posterior auricular artery in 70% of the specimens (21/30), from the occipital artery in 20% (6/30), and directly from the external carotid artery in 10% (3/30). The stylomastoid artery passed medially to the trunk of the facial nerve in 63 of the specimens (19/30) and laterally in 37% (11/30). Among these 11 specimens, 8 were large-caliber stylomastoid arteries. During parotid surgery, the main trunk of the facial nerve may be difficult to identify, because a large-caliber stylomastoid artery can mask it. Therefore, it is important to dissect this artery with caution.

Facial Nerve↗

Harlequin fetus: a case report.

We report a case of harlequin fetus. This very rare cutaneous malformation is a severe form of congenital ichthyosis. This disorder is due to an inborn error of epidermal keratinization. Malformations of ears, nose, and hypoplasia of fingers or nails are seen. This affection is most often lethal.

Biopsy↗

The recurrent laryngeal nerve: related vascular anatomy.

This study was based on 34 recurrent laryngeal nerve dissections after arterial casting with red-colored latex. The aim was to provide specific information about the perineural microvasculature. This study established the following points: 1. a great anatomic variability does exist; 2. the laryngeal nerve is usually in relation to the posterior branch of the inferior thyroid artery; and 3. this vascular branch is sometimes replaced with a vascular network. In all cases, this microvascularization must be preserved during thyroid surgery.

Cadaver↗

[Temporal fibrous dysplasia with labyrinthine involvement. Apropos of a case and review of the literature].

Craniofacial fibrous dysplasia manifests clinically with dysmorphic syndrome, ophtalmologic or otologic signs. We report a case of temporal polyostotic fibrous dysplasia with vertigo and sensorineural hearing loss. Sensorineural hearing loss, with no cholesteatoma associated, as described in our case is rarely described. We review the literature concerning main clinical, diagnostic and therapeutic aspects of this disease.

Aged↗

[A case of Kikuchi disease. Review of the literature].

We report a case of Kikuchi's disease in a young man. It is a rare entity, described for the first time in 1972. It manifests clinically with cervical adenopathy and fever, often associated with other non-specific clinical signs. Laboratory tests are often normal. The diagnosis is established on the basis of histologic of lymph node excisional biopsy. Kikuchi's disease is likely to be misinterpreted as malignant lymphoma or systemic lupus erythematosus. It generally needs no treatment because it runs a spontaneously benign course with complete resolution of the symptoms within 6 months. Secondary systemic lupus erythematosus may develop. For this reason, regular follow-up of patients is recommended. The etiopathogenesis of this disease is still unknown, perhaps due to an immunologic phenomenon. It could be a hyperimmune reaction induced by various antigenic agents (infectious, neoplasic), or an autoimmune process.

Adult↗