Differential Diagnosis for Monocular Optic Neuritis in a 12-Year-Old
Single Most Likely Diagnosis
- Multiple Sclerosis (MS): This is a leading cause of optic neuritis in children, especially in those over 10 years old. MS is an autoimmune disease that can affect various parts of the central nervous system, including the optic nerves.
Other Likely Diagnoses
- Idiopathic Optic Neuritis: This condition refers to optic neuritis without a known cause and is common in pediatric patients. It can occur in isolation or as part of a broader syndrome.
- Neuromyelitis Optica Spectrum Disorder (NMOSD): Although less common than MS, NMOSD can cause optic neuritis and should be considered, especially if there are symptoms of spinal cord involvement.
- Infectious Optic Neuritis: Certain infections, such as Lyme disease or viral infections, can cause optic neuritis. The history and additional symptoms can help guide this diagnosis.
Do Not Miss Diagnoses
- Optic Neuritis due to Sarcoidosis: Sarcoidosis is a systemic disease that can cause optic neuritis among other symptoms. It's crucial to consider this diagnosis due to its potential for serious systemic involvement.
- Leber's Hereditary Optic Neuropathy (LHON): Although typically presenting with sequential, bilateral vision loss, LHON is a mitochondrial inherited disorder that can initially present unilaterally and should not be missed due to its genetic implications.
- Optic Glioma: A type of brain tumor that can cause optic neuritis, especially if it involves the optic nerve. Early detection is critical for treatment and prognosis.
Rare Diagnoses
- Kearns-Sayre Syndrome: A rare mitochondrial myopathy that can cause external ophthalmoplegia, pigmentary retinopathy, and sometimes optic neuritis.
- Diabetic Papillopathy: Although rare in children, diabetic papillopathy can cause optic disc swelling and vision loss in patients with diabetes.
- Systemic Lupus Erythematosus (SLE): SLE is an autoimmune disease that can rarely cause optic neuritis among its myriad of potential manifestations.