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The aim of this study was to evaluate the effects of several factors on the patency of the internal jugular vein (IJV) after functional neck dissection (FND). A prospective clinical study was undertaken in 21 patients (36 neck dissections) before and after FND at the 1st and 3rd postoperative months by using duplex Doppler ultrasonography. The patients who had radiation therapy (RT) were evaluated again in the 6th postoperative month in order to assess possible late effects of radiation therapy. In our patients the patency rate was 100%, and no thrombosis was found. But the area at rest and during Valsalva's maneuver was reduced, and this difference was found to be statistically significant. It was concluded that the patency of the IJV remains normal after FND. Radiation therapy, infection or fistula formation have no detrimental effects on patency. In addition, the number of ligated branches do not seem to be related to the patency rate.

It is well known that in advanced cervical metastatic disease of head and neck squamous cell carcinoma, the incidence of distant metastasis is high. A case of distant metastasis to the scapular muscles from an uncontrolled cervical metastasis of laryngeal carcinoma is presented. Other unusual metastatic sites are reviewed and the possible mechanism of the spread is discussed.

A case of a female child of six years of age with a plexiform neurofibroma of the larynx caused by von Recklinghausen's disease is presented. Laryngeal involvement in neurofibromatosis type 1 (NF1) is rare and only 19 paediatric cases have been reported. The tumour was biopsied and lateral pharyngotomy with supraglottic hemilaryngectomy was performed in order to relieve obstructive symptoms. Problems related to this unusual tumour localization are discussed and a review of the literature is presented.