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    Giant congenital nevomelanocytic nevus and intracerebral calcified lesion
    (Wiley, 1996) Arisoy, AE; Akbasak, A; Oram, Y; Muftuoglu, M; Karabiber, H; Baysal, T; Arisoy, ES
    [Abstract Not Available]
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    Unusual presentation of a sinonasal carcinoma mimicking an aneurysm rupture
    (Springer Verlag, 1998) Kocak, A; Erten, SF; Mizrak, B; Akbasak, A; Colak, A
    Although the association of subarachnoid hemorrhage (SAH) and tumoral lesions in adult is well known, hemorrhage from a sinonasal carcinoma extending to the intracranial cavity is exceedingly rare. In this paper, the authors report on a 12-year-old girl who presented with SAH caused by a sinonasal carcinoma located in the anterior skull base area. To our knowledge, this is the first report of a sinonasal carcinoma concomitant with SAH.
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    An unusual variant of a growing skull fracture in an adolescent
    (Karger, 1998) Çolak, A; Akbasak, A; Biliciler, B; Erten, SF; Koçak, A
    A great majority of growing skull fractures occur in infancy and early childhood. Since the growth of brain is necessary as a driving force for these lesions to occur, almost all reported cases have been before the first 3 years of life. Although a number of uncommon locations, such as basiooccipital and skull base areas, have been reported, they are commonly located on calvaria. The authors report a growing skull fracture on the orbital roof in a 16-year-old female admitted to hospital with complaints of headache and seizures. She had had an orbital trauma 8 years before. CT scan revealed a hypodense lesion in the right frontal lobe and a diastatic fracture line on the right orbital roof. A right craniotomy was performed. Excision of arachnoid loculations and duraplasty were carried out. This is an unusual condition with respect to the location of the lesion, as well as the age of the patient.
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    Video endoscopy-assisted vestibular neurectomy: A new approach to the eighth cranial nerve
    (Thieme Medical Publ Inc, 1996) Ozluoglu, LN; Akbasak, A
    Disequilibrium, ranging from lightheadedness to severe vertigo, is frequently of great concern to the patients with a variety of inner ear diseases, and may cause occupational and social disability. Vestibular nerve section may be considered when vestibular symptoms are resistant to medical therapy and associated with serviceable hearing in the involved ear. During the last century, numerous authors described several routes for intracranial section of the eighth nerve, such as lateral suboccipital craniotomy, middle cranial fossa approach, and retrolabyrinthine approach to the vestibular fossa. Control of vertigo by all routes to the vestibular nerve has a success rate of 80% to 90%. The potential for endoscopic approach to intracranial cavities was recognized early in this century but, due to technical limitations, was largely abandoned after a few attempts. Advances in optics, and the introduction of very fine instruments made endoscopy worth reconsideration. Since the early 1980s, rigid endoscopes have been used in otorhinolaryngology for paranasal sinus surgery and the visualization of the facial and vestibulocochlear nerves during acoustic tumor surgery. We performed endoscopic section of the vestibular nerve through a retrolabyrinthine approach in two cadavers and in two patients with the symptoms of disequilibrium. In the literature survey, we could find no reports on vestibular neurectomy performed by endoscopic technique. We describe technical details of the approach, and conclude that the technique is safe and effective.