Differential Diagnosis for Purulent Discharge Bilateral Ears
- Single Most Likely Diagnosis + Otitis Media: This is the most common cause of purulent discharge from the ears, especially in children. It is an infection of the middle ear that can be caused by bacteria or viruses, leading to inflammation and fluid buildup, which can become purulent.
- Other Likely Diagnoses + Otitis Externa: Also known as swimmer's ear, this is an infection of the outer ear canal. It can cause purulent discharge, especially if the infection is bacterial. It's more common in individuals who swim frequently or have compromised ear canal defenses. + Eczematous External Otitis: This condition involves an allergic or irritant reaction in the ear canal, which can lead to discharge. While not typically purulent, in some cases, secondary infection can cause purulent discharge.
- Do Not Miss Diagnoses + Malignant Otitis Externa: A severe infection of the external ear that can spread to the skull base. It's more common in diabetic or immunocompromised patients and can be life-threatening if not promptly treated. + Cholesteatoma: An abnormal skin growth in the middle ear behind the eardrum. It can cause destruction of the surrounding bone and tissue, leading to complications like facial paralysis or brain abscess if not addressed.
- Rare Diagnoses + Relapsing Polychondritis: A rare autoimmune disorder that can cause inflammation of the cartilage in the ears, among other areas, potentially leading to purulent discharge if there's a secondary infection. + Granulomatosis with Polyangiitis (formerly known as Wegener's Granulomatosis): A rare autoimmune disorder that can affect various parts of the body, including the ears, potentially causing purulent discharge due to inflammation and infection.