Mammalian bone has shown a variety of responses to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) exposure in experimental and wildlife studies. Although many responses have been well characterized in the postcranial skeleton, dioxin-induced effects on the cranium are largely unknown. In this study, we investigated the effects of chronic adult exposure to TCDD on cranial size and shape in dioxin-re...

A 37-year-old woman, previously healthy with no history of trauma, presented with a scalp swelling of the left frontal region. The swelling was present for the last one year and had gradually increased in size with recent localized headache. The patient had no neurologic deficit. Local examination showed a painful local swelling of about 25 mm in diameter in the left frontal area and appeared t...

The Chiari I malformation is a congenital anomaly of unknown origin consisting of caudal displacement of the cerebellar tonsils protruding through the foramen magnum, whereas the brainstem and fourth ventricle remain in the cranial vault. We present a case of a sudden brain death of a 20-year-old adult man with trauma who subsequently was found to have a previously undiagnosed Chiari I malforma...