A patient with sinus infection develops chemosis,B/L proptosis and fever, the diagnosis goes in or of:
High-Yield Explanation
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. Ref Dhingra 6/e,p 201.