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1.
J Neurosurg Sci ; 49(4): 163-6; discussion 166, 2005 Dec.
Article in English | MEDLINE | ID: mdl-16374409

ABSTRACT

Cavernous angiomas are one of the four types of vascular malformations of the central nervous system. Lesions situated subarachnoidally are rare although some cases with an infratentorial localization have been reported. Our case represents an unusual localization of a subarachnoid cavernous angioma. A 35- year-old patient was admitted to our department with signs of subarachnoid hemorrhage. A 1 cm hyperdense lesion placed at the right Sylvian fissure was distinguished by CT-scan examination and no arterial supply was revealed on cerebral angiography. Surgical intervention showed a lesion placed extra-pial and totally encased in the subarachnoid space in the superficial part of the Sylvian cistern. This case represents a radiologically visible supratentorial extra-pial subarachnoidal cavernous angioma. This case provides confirmation of one of the supposed causes of subarachnoid hemorrahage ''sine materia''.


Subject(s)
Hemangioma, Cavernous/pathology , Subarachnoid Space/pathology , Supratentorial Neoplasms/pathology , Adult , Hemangioma, Cavernous/complications , Humans , Male , Subarachnoid Hemorrhage/etiology , Supratentorial Neoplasms/complications , Tomography, X-Ray Computed
2.
J Neurosurg Sci ; 47(4): 183-7, 2003 Dec.
Article in English | MEDLINE | ID: mdl-14978471

ABSTRACT

A vertebral artery (VA) coursing below the posterior arch of the atlas (C1) without passing through the transverse foramen of C1, combined with a tortuous course within the spinal canal has rarely been reported in the literature. This article describes a case encountered during an anatomical study of the far-lateral approach, and reviews its embryonic development and clinical significance. The suboccipital triangle was filled with numerous venous plexures. After exiting from the transverse foramen of C2, instead of passing upwards through the transverse foramen of C1, the VA turned directly medially towards the spinal canal. At the spinal canal, it first formed an angle downwards, then turned upwards, piercing and entering the lateral part of the dura at C1 level. The diameter of this VA seemed to be within its normal limits. The course of the contralateral (right) VA was normal but with a small caliber and mainly supplied the posterior inferior cerebellar artery (PICA); after PICA, it became much thinner and dysplastic, the basilar artery was mainly supplied by the left VA. The bilateral posterior communicating arteries were large in diameter but there was dysplasia of the P1 segment of the posterior cerebral arteries bilaterally. Marked tortuosity of the bilateral intracavernous internal carotid artery (ICA) was also found. We did not find any osseous abnormality in the occipito-axial region or of C1-C2 joint. An abnormal course of the VA should be kept in mind during exposure of the craniocervical junction, especially in the variety of lateral approaches; due to compression of the nerve roots or the spinal cord, this abnormal course of the VA could give rise to clinical symptoms, which could be resolved by microvascular decompression technique.


Subject(s)
Brain/blood supply , Cervical Atlas/abnormalities , Cervical Atlas/pathology , Vertebral Artery/abnormalities , Vertebral Artery/pathology , Aged , Brain Stem/blood supply , Carotid Artery, Internal/abnormalities , Carotid Artery, Internal/pathology , Cerebellum/blood supply , Cerebral Arteries/pathology , Cervical Atlas/blood supply , Functional Laterality/physiology , Humans , Male
3.
Burns ; 18(5): 416-8, 1992 Oct.
Article in English | MEDLINE | ID: mdl-1445634

ABSTRACT

Over a 1-year period (October 1990 to October 1991), 100 patients with burns due to domestic accidents have been admitted to our Burn Unit. The total number of burn admissions was 238. There is a relative abundance of data in the burn literature, clearly depicting local characteristics and peculiarities in different countries or societies. Our purpose is to present some statistical, epidemiological and socioeconomic data from Greek society, as well as to compare data from other countries.


Subject(s)
Accidents, Home/prevention & control , Burns/prevention & control , Accidents, Home/statistics & numerical data , Adult , Aged , Aged, 80 and over , Burns/epidemiology , Burns/etiology , Female , Greece/epidemiology , Humans , Male , Middle Aged , Socioeconomic Factors
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