Axial T1-weighted MRI images showing bilateral linear measurements of the head of the caudate nucleus (CN) in a 32-year-old male. Measurements were taken on a 1.5T MAGNETOM Amira system. RCNL (Right Caudate Nucleus Length): 18.39 mm, LCNL (Left Caudate Nucleus Length): 18.91 mm, RCNW (Right Caudate Nucleus Width): 8.29 mm, and LCNW (Left Caudate Nucleus Width): 8.33 mm. Yellow calipers indicate linear measurements: length (anteroposterior) and width (mediolateral). Images were acquired with AC–PC alignment to ensure anatomical consistency.