Thyroid posterior point is located at which landmark?

• A. L2 Transverse Process
• B. 2nd ICS
• C. T2 Transverse Process
• D. PSIS

Answer: (C)

In Chapman point mapping, posterior visceral points align with the transverse processes of the thoracic vertebrae that share the organ’s sympathetic innervation. The thyroid gland corresponds to the second thoracic segment, so its posterior Chapman point sits at the second thoracic transverse process—just lateral to where the vertebra protrudes. This positioning differentiates it from other landmarks like a rib level (2nd intercostal space), a lumbar level (L2), or bony landmarks such as the PSIS, which do not map to the thyroid’s visceral point.