aPTT - activated partial thromboplastin time; BD – Bleeding Disorder;
CSVT - Cerebral sinus venous thrombosis; ICH - Intracranial hemorrhage;
CT - Computed tomography; CTV - Computed tomography venogram ; IV -
Intravenous; F VIII - Factor VIII; VWF – von Willebrand Factor; Factor
XI – F XI; US-ultrasound; IJ-Internal jugular; IU-International unit;
mL-milliliter
Figure 1. Five year old patient, later found to have Hemophilia
presenting to the emergency department (ED) due to a fall of four feet
leading to trauma at the posterior portion of the skull. A) Computed
tomography (CT) of the head after admission indicating signs of a
parieto-occipital hematoma (indicated by arrow). B) Magenetic resonance
venography indicating signs of extra-axial hemorrahge as well as
narrowing and displacement of the left transverse sinus due to an
adjacent thrombus. C) Magnetic resonance angiography obtained outpatient
indicating resolution of bleeding and sinus thromboses eight weeks
following presentation.