True aneurysms of the superficial temporal artery: Diagnosis and treatment

Surgical resection of an isolated superficial temporal artery aneurysm

In the present report, we describes a case of surgical resection of an isolated superficial temporal artery aneurysm without underlying systemic pathology. Although aneurysms of this sort most commonly occur in the setting of recent trauma, this case demonstrates an uncommon presentation. We hope to further contribute to the literature regarding this condition.

True superficial temporal artery aneurysm: A case after extracranial-intracranial bypass surgery and a systematic review

Background

Nontraumatic true superficial temporal artery aneurysm (STAA) is rare, and its characteristics and pathogenesis are unclear.

Methods

We report a case of STAA and performed a systematic review of PubMed, Scopus, and Web of Science using the keyword "superficial temporal artery aneurysm" to include studies on STAA reported through July 2022. We excluded studies on STAA associated with trauma, arterial dissection, infection, or vasculitis.

Results

A 63-year-old woman who underwent left superficial temporal artery (STA)-middle cerebral artery bypass surgery 8 years previously was diagnosed with an aneurysm located at the left STA. The blood flow volume estimated by ultrasonography was higher in the left STA than in the contralateral counterpart (114 mL/min vs. 32 mL/min). She underwent clipping surgery to prevent aneurysmal rupture without sequela. The lesion was diagnosed as a true aneurysm by histology. The systematic review identified 63 cases (including the present case) of nontraumatic true STAA. The median age of the patients was 57 (interquartile range [IQR]: 41-70) years. Most (90.5%) cases were detected as a palpable mass. Aneurysmal rupture occurred in only 1 (1.6%) case, despite the large size of aneurysms (median size: 13 [IQR: 8-20] mm) and the high frequency (33.3%) of aneurysmal growth during observation. Most (93.7%) patients underwent surgical resection of STAA without sequela.

Conclusion

Our findings suggest that the pathogenesis of true STAA is promoted by hemodynamic stress. The systematic review clarified patients' and aneurysmal characteristics and treatment outcomes, providing further insight into the pathogenesis of nontraumatic true STAA.

True Superficial Temporal Artery Aneurysm Presenting as a Delayed Traumatic Pseudoaneurysm: A Case Report and Review of Literature

A rare case of a true temporal artery aneurysm is presented with review of the literature.

Masson tumor (intravascular papillary endothelial hyperplasia) arising in a superficial temporal artery aneurysm

Masson tumor (intravascular papillary endothelial hyperplasia) is a rare proliferation of endothelial cells within the wall of a vessel, often thought to represent an aberrant resolution of a thrombosis. We describe the unique case of a 75-year-old man who presented to the clinic with a tender, spontaneous aneurysmal dilation of his left superficial temporal artery (STA). Only 8% of all STA aneurysms are believed to be spontaneous true aneurysms, with the majority being post-traumatic pseudoaneurysms. After successful surgical resection, pathologic examination demonstrated a Masson tumor within an STA aneurysm. This paper describes a case in which both rare entities were discovered and briefly outlines the diagnostic and therapeutic modalities available.

Congenital True Aneurysm of the Right Superficial Temporal Artery

Introduction

Superficial temporal artery aneurysms (STAAs) occur in 1% of arterial aneurysms; mostly (95%) are pseudoaneurysms following trauma; true aneurysms are rare (5%); forty-five cases are reported.

Aim

To report a rare case of a congenital STAAA.

Case Report

A67-year-old patient recalled the existence of a true-histologically evidenced- aneurysm of the right superficial temporal artery since his childhood denying any head injury; it was resected through a horizontal skin incisure. Brain arteries' magnetic imaging was negative.

Conclusion

Spontaneous or congenital STAAs have to be removed respecting forehead lines. Intracranial vasculature must be investigated.