Use of a navigation system in endonasal surgery: Impact on surgical strategy and surgeon satisfaction. A prospective multicenter study.

Objectives: Surgical navigation systems (SNS) are now widely used in endoscopic endonasal surgery. Benefit, however, has not been fully studied. The objective of this study was to evaluate the impact of an SNS in terms of performance of the surgical procedure and of surgeon satisfaction, in a prospective multicenter study.

Guidelines of the French Society of Otorhinolaryngology (SFORL), short version. Extension assessment and principles of resection in cutaneous head and neck tumors.

Cutaneous head and neck tumors mainly comprise malignant melanoma, squamous cell carcinoma, trichoblastic carcinoma, Merkel cell carcinoma, adnexal carcinoma, dermatofibrosarcoma protuberans, sclerodermiform basalioma and angiosarcoma. Adapted management requires an experienced team with good knowledge of the various parameters relating to health status, histology, location and extension: risk factors for aggression, extension assessment, resection margin requirements, indications for specific procedures, such as lateral temporal bone resection, orbital exenteration, resection of the calvarium and meningeal envelopes, neck dissection and muscle resection.

[Bullous paraneoplastic acrokeratosis].

Background: Bullous lesions of acral distribution are an uncommon finding in Bazex's syndrome (acrokeratosis paraneoplastica). We report here one of these rare cases.

Patients And Methods: A 65 year-old-man, an alcoholic and a smoker, presented with characteristic lesions of Bazex's acrokeratosis paraneoplastica associated with a right cervical lymph node mass.

[Large orbito-palpebral cavernous hemangioma].

Cavernous hemangiomas are benign vascular orbital lesions that exert a slowly progressive mass effect. They usually occur in adults. The authors report an unusual case of a large orbito-palpebral cavernous hemangioma with peculiar history and symptoms.

Dose-effect study of intranasal administration of growth hormone-releasing hormone-44-NH2 in healthy subjects.

Intranasal (in) administration of GH-releasing hormone-40- (GHRH-40) has been demonstrated to be efficient in stimulating GH secretion at doses equal to or higher than 30 micrograms/kg in man. We performed a dose-response study with GHRH-44-NH2 (GHRH) given by nasal spray and closely monitored local tolerance. Twelve normal young men were given 5 GNRH doses (125, 250, 500, 750, and 1000 micrograms) and placebo in random order according to a latin square design.

[Extensive fibromatosis of the neck muscles].

Extensive fibromatosis, also called desmoid tumor, is a histologically benign tumor, which is nonetheless serious due to its recurrent character and to its potential for infiltration of neighboring tissues. Extensive surgery is the only effective means of treatment, radiation therapy being used only as a complement. The authors describe an elective location of the lesion in the sheaths of the scalenus muscles.

[Diffuse spontaneous cervical cellulitis caused by anaerobic bacteria].

Nine cases of diffusal cervical cellulitis due to anaerobes were analysed. Some of them had right away extensions (to the inferior mediastinum or to the face). From these cases, the authors argue their treatment protocol.

[Extensive papilloma durum of the larynx and its malignant transformation. Apropos of 15 personal cases in 15 years].

Based on a review of 13 personal cases an attempt is made to isolate a specific laryngeal lesion: extensive papilloma durum of larynx of almost ineluctable malignant transformation. Clinical, histopathologic and therapeutic aspects of the affection are reviewed.