BACKGROUND The foramen magnum is an important anatomical opening in the base of the skull through which the posterior cranial fossa communicates with the vertebral canal. It is also related to a number of pathological conditions including Chiari malformations, various tumours, and occipital dysplasias. The aim of the study was to evaluate the morphology of the foramen magnum in adult individual...

The usual causes of obstruction at the foramen of Monro are neoplasm of the 3rd ventricle, ventriculitis, intraventricular haemorrhage, arteriovenous malformation, subependymal gliosis and overdrainage of one lateral ventricle following a shunt operation. resulting in functional occlusion of the foramen of Monro (1-4,7-11,13).Congenital atresia of the foramen of Monro is rare (12·14). Obstructi...

This review gives detail information about the mental foramen location, shape, size and numbers and its variation between races. Studies have shown that there are variations in the position of mental foramen in different populations. It may lie between the apices of premolars, below the apex of first or second premolars. This variations mandate accurate detection of foramen during examination a...

AIM The objectives were to study the morphology of the foramen magnum in dry skulls and to evaluate its antero-posterior diameter, transverse diameter and the foramen magnum index. MATERIAL AND METHODS The foramen magna of 53 dry human cadaver skulls that were obtained from the neuroanatomy laboratory were examined. Different shapes of the foramen magnum were macroscopically n...

BACKGROUND AND PURPOSE A patent foramen ovale has been reported to be significantly more frequent in young stroke patients than in matched control subjects, and paradoxical embolism has been suggested as the main mechanism of stroke in this situation. The present study was designed to test this hypothesis. METHODS Sixty-eight consecutive patients under 55 years of age presenting with an ische...

Evidence shows a clear racial variation in the position of the mental foramen. Therefore, detailed knowledge of the morphometry of the mental foramen in different populations is essential in clinical dentistry when administering regional anesthesia, and performing peripheral surgery in the mental region of the mandible. The goal of this study was to elucidate the morphological features and prec...

The ramus of mandible presents on its medial surface a little above its centre an irregular foramen called the mandibular foramen. This foramen is guarded by a thin sharp tongue shaped projection in its proximity called the lingula. This foramen transmits the inferior alveolar nerve and the corresponding artery to the mandibular canal (Grays) [1]. Here in , the nerve supplies the pulps of all t...

Intradural metastatic tumors are rarely reported in foramen magnum (FM), including cases of melanoma, pituitary carcinoma, thyroid carcinoma, and prostate carcinoma metastases. We report a 68-year-old male who presented with right-sided headache, progressive swallowing difficulty requiring gastrostomy tube and hoarseness over the course of 1 year. Images revealed a heterogeneous, contrast-enhan...

Knowledge of the position of the mental foramen is important both when administering regional anesthesia and performing periapical surgery in the mental region of the mandible. This study determines the position of the mental foramen in a selected Malay population. One hundred and sixty nine panoramic radiographs of Malay patients retrieved from a minor oral surgery waiting list were selected t...