Hematotympanum (blood behind the eardrum) and otorrhea (discharge from the ear, which can include cerebrospinal fluid) are classic signs of a basilar skull fracture. This type of fracture occurs at the base of the skull and often results in dural lacerations, leading to bleeding and leakage of cerebrospinal fluid. Subdural and epidural hematomas involve bleeding within the layers covering the brain and do not typically present with ear-related symptoms. Frontal lobe fractures can cause various neurological symptoms, but they do not specifically cause hematotympanum or otorrhea.