An inmate sustains a traumatic wound during a prison riot and is stabbed by a prison “shank” around his pectoralis major and deltoid muscles very superficially injuring a vein in this region between the two muscles. Which vein is most likely injured in this scenario?

Question

BlackTom AI · Accepted Answer

To approach this question, we first identify the anatomical region described: a wound superficial to the pectoralis major and deltoid, in the groove between these two muscles. This is classically the deltopectoral groove.
Option 1: Cephalic vein. The cephalic vein runs superficially along the lateral aspect of the arm and ascends in the deltopectoral groove, eventually draining into the axillary vein. Given the location between pectoralis major and deltoid, this is precisely where the cephalic vein is most superficial and at risk.
Option 2: Axillary vein. The axillary vein is deeper and runs medial and posterior to the pectoralis major. It lies more internal rather than within the superficial plane between the two muscles, so a superficial wound in that groove would less likely injure this vein directly.
Option 3: Brachiocephalic vein. The brachiocephalic veins are formed by the joining of the internal jugular and subclavian veins near the thoracic inlet, far from the superficial deltopectoral region. An injury here would require a much more superior and medial path, not consistent with a superficial wound between pectoralis major and deltoid.
Option 4: Basilic vein. The basilic vein lies on the medial aspect of the arm and traverses the deep fascia toward the axillary region, but it is not located in the deltopectoral groove between the pectoralis major and deltoid. Therefore, it is not the vein most likely injured by a superficial stab in this area.
Overall, the clinical scenario aligns best with injury to the cephalic vein, given its anatomic course through the deltopectoral groove and its superficial position in that region.

An inmate sustains a traumatic wound during a prison riot and is stabbed by a prison “shank” around his pectoralis major and deltoid muscles very superficially injuring a vein in this region between the two muscles. Which vein is most likely injured in this scenario?单项选择题

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