<prompt> Lighthouse sign is seen inStage of suppurationStage of hyperaemiaStage of resolutionStage of pre-suppuration  <response>: Lighthouse sign is seen in Stage of suppuration of AOMStages of AOM-1. Stage of hyperemiaCongestion- Cawheel appearance of TM2. Stage of exudationPre suppuration3. Stage of suppuration- Lighthouse sign Pinpoint perforation4. Stage of resolutioncomplicationsRef: Hazarika; 3rd ed; Pg 149 