| Description |
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Examination reveals a vesicular or bullous eruption over the tympanic membrane and adjacent bony canal wall. In the early stages, the vesicles are erythematous and surrounded by injected epithelium. In the later stages, they are larger and filled with fluid which may be clear and serous or blood filled. In this photograph, the bulla has now been incised with a myringotomy knife and the fluid drained. Notice the petechial hemorrhage around the base of the bulla and extending into the attic area. |
