Spontaneous Giant Aneurysm of the Superficial Temporal Artery -Case Report-

Abstract

A 78-year-old woman presented with preauricular superficial temporal artery (STA) aneurysm and scalp porocarcinoma, which had both increased in size over 2 years. She had no previous history of head trauma. Three-dimensional (3D) computed tomography (CT) angiography revealed a 4-cm diameter STA aneurysm arising from the main trunk of the left STA and located just lateral to the zygomatic arch. The scalp porocarcinoma was excised by dermatologists. The STA aneurysm was carefully dissected from the surrounding tissues, and was resected after ligation of the proximal STA. Histological examination showed the aneurysm consisted of intima, media, and adventitia, and the diagnosis was atherosclerotic fusiform aneurysm. 3D CT angiography is quite useful to plan surgical strategy for such an unusually large STA aneurysm.

Spontaneous Superficial Temporal Artery Pseudoaneurysm in Elderly Women -Three Case Reports-

“…In the surgical treatment of aneurysms in the proximal portion of the STA, the relationship between the aneurysm and the zygomatic arch is important and CT angiography can clearly demonstrate the topographic relationship. 6) The present three cases of STA pseudoaneurysms in elderly patients were associated with latent dissection and external force exerted by the tight frames of glasses. Surgical resection of the STA aneurysms produced satisfactory outcomes in all 3 patients.…”

“…2,5,8,15) Spontaneous STA aneurysms, in contrast, tend to be associated with arteriosclerosis, are characterized by atherosclerotic plaques and calcification, and most are identified as true aneurysms by histological examination. 1,6,11,14) Although we first thought that the STA aneurysms in our elderly patients were attributable to arteriosclerosis, we identified them as pseudoaneurysms based on the histological examination of the aneurysm wall revealing disruption of the internal elastic lamina and presence of the connective tissue and adventitia only. 16) Spontaneous STA pseudoaneurysms in the absence of trauma are extremely rare, with only one previously reported case.…”

Intravascular papillary endothelial hyperplasia in an aneurysm of the superficial temporal artery: Report of a case

“…In the English-language literature, only 15 cases of spontaneous true aneurysm of an STA without a history of head injury, including the present case, have so far been reported (Table 1). [2][3][4][5][6][7][8][9][10][11][12][13] The nine male and six female patients were aged between 10 and 85 years old. The aneurysm arose in the main trunk of a STA in seven cases and in a distal branch of the STA in eight cases.…”

“…1 However, spontaneous true STA aneurysms are quite rare, with only 14 cases described. [2][3][4][5][6][7][8][9][10][11][12][13] In addition, intravascular papillary endothelial hyperplasia (IPEH) is a well recognized but not frequently reported histological diagnosis, fi rst described by Masson in 1923. 14 Most commonly, it appears in thrombosed dilated veins or vascular tumors.…”

A Rare Case of Spontaneous True Aneurysm of the Occipital Artery

“…Artherosclerotic change and hemodynamic stress to the arterial wall might be essential to its development. Congenital vulnerabilities of the arterial wall, such as defects of the elastic membrane, may also contribute to the development of a true aneurysm 6) . A true aneurysm involves all three vessel layers-the intima, media, and adventitia-and represents a localized or diffuse dilation of the vessel wall.…”