Mastoiditis causing Sinus Thrombosis and Posterior Fossa Epidural Haematoma: Case report

Abstract

Spontaneously occurring epidural haematomas are an uncommon entity. A spontaneous post fossa epidural haematoma due to sigmoid sinus thrombosis secondary to mastoiditis has not been reported in English medical literature. We report a 40 year-old man who presented to us with headache and incoordination. A magnetic resonance imaging (MRI) confirmed epidural sub-acute bleeding in the right side of posterior fossa with mastoiditis and right sigmoid sinus thrombosis. A right suboccipital craniotomy and evacuation of the haematoma was done and the patient was relieved of his complains.

Keywords: Case report; Cranial fossa posterior; Haematoma, epidural; India; Mastoiditis; Sinus thrombosis.

Figure 1:

A: Axial T1-weighted magnetic resonance image showing hypointense signal with peripheral hyperintensity and right mastoid showing hypointense signal; B: Axial T2-weighted image showing hypointense signal with peripheral hyperintensity and right mastoid showing hyperintense signal; C: Gradient-echo sequence showing hypointense signal.

Figure 2:

Magnetic resonance venography demonstrating thrombosis in the right sigmoid sinus.