<prompt> Picket fence fever is seen in -PetrositisLateral sinus thrombosisMeningitisTemporal lobe abscess  <response>: Ans. is b i.e., Lateral sinus thrombosiso Picket Fence fever is commonly associated with lateral sinus thrombosis.o It is characterized by spikes in fever several times during the day.Also know the following features of lateral sinus thrombosis Queckenstedts tests: -No increase in C.S.F. pressure when ipsi lateral jugular vein compressed.Greisingers signTenderness over mastoid area from extension through mastoid emissiary vein. 