Deltopectoral groove

Last revised by Jeremy Jones on 7 Jan 2025

The deltopectoral groove (also known as Mohrenheim’s groove) is located between the superolateral aspect of the pectoral region and the deltoid muscle. It runs obliquely from superomedial to inferolateral and contains the cephalic vein, which at the upper margin of the groove dives deep to pierce the clavipectoral fascia and enter the axillary vein.