Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of T4
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
T4: Thyroxine, a thyroid hormone. The number 4 is sometimes in subscript.
Need Expert Advice on Your Condition?
Get a personalized video breakdown and treatment plan from our senior neurosurgeons using your MRI/CT scans.
👉 Request MRI Review