Which boundaries define Viborg's Triangle?

Which boundaries define Viborg's Triangle?

• A. Caudal border of mandibular ramus; dorsal by sternocephalicus tendon; ventral by linguofacial vein
• B. Caudal border of scapula; dorsal by trapezius; ventral by jugular vein
• C. Caudal border of maxilla; dorsal by zygomatic arch; ventral by facial artery
• D. Caudal border of pelvis; dorsal by gluteus; ventral by inguinal ligament

Answer: (A)

Viborg's triangle is a practical surgical window on the ventral neck used to access the trachea. The three borders are chosen so you can reach the trachea safely without hitting major vessels: the caudal border of the mandibular ramus marks the front edge near the jaw, the sternocephalicus tendon runs along the dorsal side of the neck, and the linguofacial vein forms the ventral boundary. Together they enclose a small triangular area over the upper trachea that provides a straightforward access point for procedures like tracheostomy. The other boundary descriptions point to different regions and structures (shoulder, facial/facial vessels in the head, or pelvic region) and do not correspond to Viborg's triangle.

Viborg's triangle is a practical surgical window on the ventral neck used to access the trachea. The three borders are chosen so you can reach the trachea safely without hitting major vessels: the caudal border of the mandibular ramus marks the front edge near the jaw, the sternocephalicus tendon runs along the dorsal side of the neck, and the linguofacial vein forms the ventral boundary. Together they enclose a small triangular area over the upper trachea that provides a straightforward access point for procedures like tracheostomy.

The other boundary descriptions point to different regions and structures (shoulder, facial/facial vessels in the head, or pelvic region) and do not correspond to Viborg's triangle.