Traumatic pseudoaneurysm of the superficial temporal artery: a case report

Abstract

Pseudoaneurysms of superficial temporal artery are very rare and commonly occur as a result of blunt trauma. There are several methods for the diagnosis, but the diagnosis can be accurately made only from a history and physical examination. A 27-year-old man presented with a painless pulsatile mass over his right temporal region after a blunt head trauma. The diagnosis was suspected to be superficial temporal artery pseudoaneurysm. The patient underwent surgical exploration and the mass was resected. Histopathological findings confirmed the diagnosis of pseudoaneurysm. Superficial temporal artery pseudoaneurysm can be easily diagnosed through an accurate history and physical examination alone. Diagnostic methods can be used in complicated cases. KeywOrds: Trauma, Temporal artery, Pseudoaneurysm ÖZYüzeyel temporal arter psödoanevrizması çok nadir görülür ve en sık künt travma sonucu olarak ortaya çıkar. Tanı için çeşitli yöntemler vardır, ama sadece bir öykü ve fizik muayene ile doğru tanı konabilir. 27 yaşındaki bir adam, künt kafa travması sonrası, sağ temporal bölgede üzerinde ağrısız pulsatil kitle ile başvurdu. Yüzeysel temporal arter psödoanevrizma tanısı şüphelenildi. Hastaya cerrahi eksplorasyon yapıldı ve kitle rezeke edildi. Histopatolojik bulgular ile psödoanevrizma tanısı doğrulandı. Yüzeyel temporal arter psödoanevrizması doğru bir öykü ve sadece fizik muayene ile kolaylıkla teşhis edilebilir. Komplike vakalarda tanı yöntemleri kullanılabilir.

Giant life-threatening external carotid artery pseudoaneurysm caused by a mandibular condylar fracture

“…This mechanism could be the edges of a fractured cortical bone, such as the mandibular condyle, that are generally irregular and very sharp, similar to those of a blade. 32 The proximal fragment of the mandibular condyle showed such a characteristic, and its anatomic relationship with the external carotid artery and also with the pseudoaneurysm supports its involvement in the etiology of this pseudoaneurysm.…”

“…11,15 Some blunt injuries have been implicated in the etiology of pseudoaneurysms, especially in superficial vessels. 32 However, in the area of the terminal portion of the external carotid artery, it does not happen often because of the great protection afforded by surrounding tissue. Thus, a supposed internal mechanism near the artery would be responsible for causing this lesion.…”

Identity of growing pulsatile mass lesion of the scalp after blunt head injury: Case reports and literature review

“…The difference may be due to a difference in pathogenesis. In pseudoaneurysm, an organized fibrous capsule on the injured arterial wall is formed around the hematoma and grows gradually [ 6 ]. On the other hand, for AVF, there are two suggested theories: the laceration theory and the disruption theory [ [7] , [8] , [9] , [10] ].…”

“…The most vulnerable artery is the STA, but pseudoaneurysm and AVF of the OA is quite rare, as seen in Case 2 [ [11] , [12] , [13] , [14] ]. The STA is the most vulnerable artery because of its superficial course and less surrounding protective tissue as it runs just below the temporalis muscle [ 6 , 15 ].…”

“…When a physician encounters a growing lump of the scalp, differential diagnosis should include hematoma, lipoma, epidermoid cyst, abscess, aneurysm, AVF, lymphadenopathy, neuroma, angiofibroma, meningocele, encephalocele, and lymphoid hyperplasia [ 6 , 10 ]. In traumatic vascular injuries, because the majority of the lumps are pulsatile, this finding may help in the diagnosis.…”