A 25 year-old woman presented with headaches. Cerebral Venous Thrombosis. Magnetic Resonance Venogram (MRV). Note the absence of the left sigmoid sinus, as well as the complete absence of the left ...

Robert is a 39-year-old male who presented with a 5-day history of severe headaches treated initially with antibiotics for suspected sinusitis by his primary-care physician. Robert's headaches did not ...

A 24 year-old woman presented with headaches followed by lethargy and then coma. On examination, her pupils were small but reactive to light. She had no vertical upgaze with a doll's head maneuver.

The sinuses are hollow spaces in the skull and the face bones around your nose. There are four pairs of sinuses, named for the bones that they’re located in. The sinuses collectively are called the ...