A patient with sinus infection develops chemosis ,B/L proptosis and fever, the diagnosis goes in favour of-
Angular vein which begins from medial angle of eye, continues as the facial vein. The facial vein communicates with the cavernous sinus through the deep facial vein and pterygoid plexus of veins.
B/L proptosis, fever and chemosis point towards cavernous sinus thrombosis.
Lateral sinus thrombosis
Frontal lobe abscess
Cavernous sinus thrombosis
Meningtitis