What is trigonum supraclaviculare?

Trigonum supraclaviculare is a triangular space located above the clavicle (collarbone) and below the sternocleidomastoid muscle in the neck. The boundaries of this region are the clavicle, the omohyoid muscle, and the sternocleidomastoid muscle. It contains important structures such as the subclavian artery, subclavian vein, and brachial plexus. The brachial plexus is a network of nerves that originate from the neck and innervate the upper limb. The subclavian artery and vein are essential blood vessels that supply blood to and from the upper limb. The trigonum supraclaviculare is an important landmark in clinical examination and surgical procedures of the neck and upper limb.