Pseudoaneurysm as a Post-Biopsy Complication

Superficial Temporal Artery Pseudoaneurysm After Botulinum Toxin Injection

“…3,4 Although reported most extensively in the setting of blunt head trauma, pseudoaneurysms are described in dermatology literature as arising after Mohs micrographic surgery and even punch biopsy. 1,2 The authors believe the inciting event in our patient is likely her preceding BTX injection, in which the needle inadvertently struck the STA. Pseudoaneurysm of the STA in the setting of BTX has been reported twice in plastic surgery literature.…”

“…4 This presents clinically as a pulsating, often painful, subcutaneous mass or nodule which may slowly enlarge. 1–4 With compression on the proximal segment of the STA, the pulsation and bruit diminishes. 4…”

“…4 This presents clinically as a pulsating, often painful, subcutaneous mass or nodule which may slowly enlarge. [1][2][3][4] With compression on the proximal segment of the STA, the pulsation and bruit diminishes. 4 Diagnosis can be made clinically, although imaging with Doppler ultrasound, contrast-enhanced computed tomography, or angiography is beneficial for confirmation.…”