Which specialist would diagnose and treat diseases of the ear, nose, and throat?

An otolaryngologist, commonly known as an ENT specialist, is specifically trained to diagnose and treat conditions affecting the ear, nose, and throat, as well as related structures of the head and neck. This specialty encompasses a wide range of disorders, from infections of the ear and sinus conditions to more complex issues such as hearing loss and allergies. The comprehensive training of an otolaryngologist allows them to perform surgeries and procedures pertinent to their field, such as tonsillectomies or corrective surgeries for hearing impairments.

The other specialists mentioned have different focus areas. For instance, a pediatrician primarily cares for children's health and generally does not specialize in treating specific ear, nose, or throat disorders. An oncologist is focused on diagnosing and treating cancer, while an internist deals with internal medicine, handling a broad range of adult diseases but not specifically targeting the ENT domain. Thus, the training and scope of practice of an otolaryngologist make them the appropriate choice for managing diseases in this particular area of the body.