This study addressed the issue of multiple parallel auditory processing systems and their relationship to the skull-recorded auditory evoked potentials (AEPs) in the unanesthetized, unrestrained rat. In the preceding paper (Brain Res., 602 (1993) 240-250) it has been shown that auditory cortex activity does not contribute significantly to the vertex maximal AEPs recorded from the dorsal skull o...

In this article, radiocarbon dating has been used as a tool for investigating the authenticity of two Mesoamerican artefacts from collection National Museum World Cultures (Museum Volkenkunde), Leiden, Netherlands. The first artefact is ceremonial Aztec, possibly tecpatl, knife, and it presumed to date 1300–1500 CE. second object decorated Mixtec skull, 1400–1520 efficacy was thoroughly tested ...

Primary osteosarcomas of the skull and skull base are rare and comprise < 2% of all skull tumors. In head and neck osteosarcomas, the chondroblastic subtype occurs most frequently, which has an exceedingly poor outcome, but its image characteristic remains unknown. Herein, we report a case in the right occipital bone of the skull base and the unique characteristics of image. Pathologic examinat...

A two-year-old Thoroughbred colt was presented to the Equine Clinic, Onderstepoort Veterinary Academic Hospital for head trauma after rearing and falling backwards, hitting his head on the ground. Following medical therapy for acute onset neurological impairment secondary to a suspected basilar skull fracture, the horse was anaesthetised and computed tomography of the skull was performed. A dia...

Fracture of the cranial bones following trauma is common. The fracture most commonly encountered in clinical practice is an undisplaced linear fracture of a skull bone or a depressed skull fracture. Compound elevated skull fracture, unlike depressed skull fracture is an extremely rare variety of post-traumatic cranial injury, seldom seen in modern clinical practice. Authors report one such rare...

Received 10/2/2000; revised 11/17/2000; accepted 12/2/2000. For correspondence or reprints contact: Ming-Che Wu, M.D., Department of Nuclear Medicine, MacKay Memorial Hospital, 92, Section 2, Chung-San North Road, Taipei 10449, Taiwan. Tel: (886)2-25433535 ext. 3369, Fax: (886)2-25433535 ext. 2925, E-mail: [email protected] Background: The authors evaluated the performance of Tc-MDP planar sk...

Cerebral cavernous Malformation (CCM) is a rare neurovascular malformation accounting 0.5% to 4% of all intracranial vascular malformations. People harboring CCM may be symptomatic or present with seizure, hemorrhage progressive neurological deficit. Asymptomatic needs no treatment. The not require intervention. best treatment for microsurgical excision. Over period five years we have been mana...

B ONE CHANGES similar to those occtirring in Cooley’s anemia and ohserved in chronic iron deficiency anemia were first described by Reimann in 1956.’ He noted striking alterations, particularly in the skull and also in short and long bones, due to erythroid hyperplasia of the bone marrow. According to Reimann, these changes were never so pronounced as in Cooley’s anemia. In 1958 Eng described b...

this study was conducted to investigate theallometric growth pattern and sexual dimorphism in the skull of both sexes ofiranian brown bear (ursus arctos) in thealborz mountains using geometric morphometric and traditional morphometric techniques. morphometric parameters were obtained from 2d pictures of skulls using the software imagej and allometric growth pattern was calculated as a power fun...