Definition: area of anterior thoracic region bounded superiorly by the clavicle, inferomedially by the pectoral major (muscle) and superolaterally by the deltoid (muscle); the cephalic vein typically passes from superficial to deep here, and the pectoral branch of the thoracoacromial (arterial) trunk emerges here.
Synonym(s): trigonum clavipectoraleTA, trigonum deltopectorale, deltoideopectoral triangle, deltopectoral triangle, trigonum deltoideopectorale
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