Impact of preinjury anticoagulation in patients with traumatic brain injury.

Introduction: This study was undertaken to examine the impact of various anticoagulation agents in head injury patients.

Methods: The medical records and trauma registry were used to analyze the data. All adult trauma patients using aspirin, clopidogrel bisulfate (Plavix), warfarin (Coumadin), or heparin and admitted to the hospital with computed tomography (CT) scan evidence of brain injuries were included in the study.

Cervical spinal cord hemorrhage secondary to neonatal alloimmune thrombocytopenia.

Neonatal alloimmune thrombocytopenia with intracranial hemorrhage is a reported phenomenon. While most of the hemorrhages are noted to be either intraventricular or intraparenchymal, the authors describe the case of a fourth-ventricle hemorrhage with extension into the spinal column down the cervical spinal cord secondary to maternal anti-human platelet antigen (HPA-1a) antibody.

MR of head and neck adenopathy in asymptomatic HIV-seropositive men.

Purpose: Adenopathy is a well-known component of AIDS-related complex. Our goal was to determine whether asymptomatic HIV-infected persons have characteristic findings of head and neck adenopathy on MR imaging and whether there is an association between the MR findings and the CD4 lymphocyte counts.

Methods: We blindly and retrospectively evaluated the distribution and size of lymphadenopathy seen on screening MR examinations that were performed on 50 asymptomatic HIV-positive male subjects and 50 age-matched HIV-negative control subjects.

Idiopathic arterial calcification of infancy: prenatal and postnatal effects of therapy in an infant.

In an infant with idiopathic arterial calcification of infancy, prenatal diagnosis of arterial calcification was made by ultrasonography and allowed initiation of therapy in utero. Etidronate therapy produced apparent radiographic and ultrasonographic improvement in the degree of vascular calcification but did not prevent the lethal progression of intimal vascular occlusive disease.