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case_images: Image illustrating the position of the transducer at the medial forearm of the patient for assessment of the ulnar artery.
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case_images: The examination (Figure 2) was performed using a high frequency linear transducer, with the patient supine, assessing the medial aspect of the forearm and the cubital fossa.
case_images: Doppler ultrasonography of the right upper limb showing presence of the superficial ulnar artery anatomic variant, showing the transverse image on the left and the longitudinal image on the right. Labels indicate (A) the ulnar artery, in a superficial position, and (B) the flexor muscles of the forearm.
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case_images: Vascular ultrasound ruled out aneurysms and pseudoaneurysms, showing a superficial ulnar artery originating at the brachial artery and with normal dimensions and arterial flow waves according to spectral Doppler (Figure 3).
case_images: Doppler ultrasound of the left upper limb with the ulnar artery in its normal position, showing the transverse image on the left and the longitudinal image on the right. Labels indicate (A) the ulnar artery, in a superficial position, and (B) the flexor muscles of the forearm.
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case_images: There was no anatomic evidence of a similar variant in the left upper limb (Figure 4).