PMC4014820_01
A 12-year-old boy with evidence of (a) petrous bone fracture and pneumocephalus on axial CT at the time of presentation. (b) MRV at the time revealed a flow void of the sigmoid sinus and external jugular vein, confirming the diagnosis of sigmoid sinus thrombosis
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F1
A computed tomography (CT) of the head [Figure 1a] on presentation revealed a small petrous bone fracture on the right side of the skull. A magnetic resonance venography (MRV) [Figure 1b] was ordered to evaluate the cranial vascular integrity, which demonstrated a flow void of the right sigmoid sinus and the right external jugular vein.
Repeat MRV demonstrating persistent flow void through the sigmoid sinus, but improved flow through external jugular vein after 3 days of anticoagulation therapy
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F2
The patient remained stable and on the third day of admission, a repeat MRV [Figure 2] demonstrated persistent flow void of the sigmoid sinus, but improved flow through the external jugular sinus.