Abstract
Traumatic pseudoaneurysm of the superficial temporal artery is a very rare lesion and usually presents as a painless pulsatile mass in the temporal region a few weeks after trauma. The infrequent incidence and sometimes perplexing presentation still warrants the need for awareness of its presentation and diagnosis. We report a case of traumatic pseudoaneurysm of the superficial temporal artery that presented a few weeks after blunt trauma to the head in an 18 year old. We also review the optimal approach to the diagnosis and management of the lesion.
Highlights
A pseudoaneurysm of the superficial temporal artery (STA) is an infrequent lesion, especially in children, and it has a characteristic finding of a pulsatile cystic mass in the frontotemporal region [1,2]
We report a case of traumatic pseudoaneurysm of the superficial temporal artery that presented a few weeks after blunt trauma to the head in an 18 year old
Thomas Bartholin first described a case of STA pseudoaneurysm in 1740 [3] and since more than 400 cases have been reported in the literature [4]
Summary
A pseudoaneurysm of the superficial temporal artery (STA) is an infrequent lesion, especially in children, and it has a characteristic finding of a pulsatile cystic mass in the frontotemporal region [1,2]. We report a case of pseudoaneurysm of the STA secondary to a head injury in a teenager and discuss the etiology, diagnosis, and treatment options. We found a pulsatile, painless mass measuring approximately 25 mm in diameter (Figure 1). A contrast enhanced CT scan revealed a well-enhancing round mass in the left temporal region (Figure 2 and 3). The mass was severely adherent to the adjacent tissue, and after complete dissection, a pseudoaneurysm was found in the parietal division of the left STA. The post-operative evolution was favorable (Figure 4 and 5)
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