Greisinger's sign is suggestive of-

Ans. is 'a' i.e., Acute mastoiditis with lateral sinus thrombosis Signs of lateral sinus thrombosis (sigmoid sinus thrombosis)o Griesinger's sign:- odema over the posterior part of mastoid due to thrombosis of mastoid emissary veinso Papilloedemao Tobey-Ayer testo Crowe-Beck test:- Pressure on jugular vein of healthy side produces engorgement of retinal veins. Pressure on affected side does not produce such changeo Tenderness along jugular vein