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Click A 52 year old male status post stabbing with a traumatic left lateral thoracic artery pseudoaneurysm.

Findings: There is soft tissue stranding and approximately 6.7 x 9.4 cm hematoma of the left anterior chest wall, containing subcutaneous and intramuscular air. There is associated 1.4 x 1.0 x 2.4 cm (TV, AP, CC) pseudoaneurysm and/or AV fistula in the left axilla with a narrow neck measuring 3 mm. The evaluation is limited due to non-angiographic technique and extensive streak artifact from adjacent vessels. The remainder of the soft tissues are unremarkable. The osseous structures are unremarkable.

Technique: Axial CT of the chest was performed from the thoracic inlet through the lung bases following intravenous administration of 100 mL of Omnipaque-300.

Click A 52 year old male status post stabbing with a traumatic left lateral thoracic artery pseudoaneurysm.

Findings: There is soft tissue stranding and approximately 6.7 x 9.4 cm hematoma of the left anterior chest wall, containing subcutaneous and intramuscular air. There is associated 1.4 x 1.0 x 2.4 cm (TV, AP, CC) pseudoaneurysm and/or AV fistula in the left axilla with a narrow neck measuring 3 mm. The evaluation is limited due to non-angiographic technique and extensive streak artifact from adjacent vessels. The remainder of the soft tissues are unremarkable. The osseous structures are unremarkable.

Technique: Sagittal reformatted CT of the chest was performed from the thoracic inlet through the lung bases following intravenous administration of 100 mL of Omnipaque-300.

Click A 52 year old male status post stabbing with a traumatic left lateral thoracic artery pseudoaneurysm.

Findings: There is soft tissue stranding and approximately 6.7 x 9.4 cm hematoma of the left anterior chest wall, containing subcutaneous and intramuscular air. There is associated 1.4 x 1.0 x 2.4 cm (TV, AP, CC) pseudoaneurysm and/or AV fistula in the left axilla with a narrow neck measuring 3 mm. The evaluation is limited due to non-angiographic technique and extensive streak artifact from adjacent vessels. The remainder of the soft tissues are unremarkable. The osseous structures are unremarkable.

Technique: Coronal reformatted CT of the chest was performed from the thoracic inlet through the lung bases following intravenous administration of 100 mL of Omnipaque-300.

Click A 52 year old male status post stabbing with a traumatic left lateral thoracic artery pseudoaneurysm.

A 0.035 Glidewire was advanced into the left subclavian artery. The 5 French angled catheter was advanced over the 0.035 Glidewire. The tip of the catheter was positioned in the left subclavian artery. Arteriography of the left subclavian artery was performed. A pseudoaneurysm originating from a branch of the lateral thoracic artery was identified with an arteriovenous fistula originating from the pseudoaneurysm.

A roadmap of the left subclavian artery was performed. The angled catheter was used to select the origin of the left lateral thoracic artery. A Renegade Hi-flo microcatheter was advanced into the affected branch of the left lateral thoracic artery. Arteriography of the branch of the left lateral thoracic artery was performed and identified the origin of the pseudoaneurysm with the adjacent arteriovenous fistula.

Click A 52 year old male status post stabbing with a traumatic left lateral thoracic artery pseudoaneurysm.

A roadmap of the left subclavian artery was performed. The angled catheter was used to select the origin of the left lateral thoracic artery. A Renegade Hi-flo microcatheter was advanced into the affected branch of the left lateral thoracic artery. Arteriography of the branch of the left lateral thoracic artery was performed and identified the origin of the pseudoaneurysm with the adjacent arteriovenous fistula.

The microcatheter was advanced distal to the origin of the pseudoaneurysm. The affected branch of the left lateral thoracic artery was embolized using platinum microcoils deposited proximal and distal to the origin of the pseudoaneurysm. The main branch of the left lateral thoracic artery was spared of embolization. The microcatheter was removed. The base catheter was pulled into the left subclavian artery. Completion left subclavian arteriography was performed and identified occlusion of the affected branch of the left lateral thoracic artery with persistent flow into the main branch of the left lateral thoracic artery. Absence of flow into the pseudoaneurysm. Absence of flow into the arteriovenous fistula.