What condition is described by hemotympanum?

Hemotympanum refers specifically to the presence of blood in the middle ear, particularly behind the tympanic membrane (TM). This condition often arises from trauma to the ear or head, such as a skull fracture. The presence of blood can be visualized during an examination of the ear, indicating that there has been bleeding into the space normally filled with air. Recognizing hemotympanum is crucial as it may signal serious underlying issues, like injury to the structures of the ear or the base of the skull, making appropriate medical evaluation and intervention necessary.

The other choices describe different conditions involving the tympanic membrane or its surroundings but do not pertain to the presence of blood. Fluid behind the TM implies an accumulation of non-bloody fluid, yellow discharge suggests the presence of an infection or pus, and a normal appearance indicates no abnormalities are observed. None of these accurately describe the specific condition of hemotympanum.