Penetrating atheroma in cervical carotid artery stenosis: Case report

Ayumi Narisawa, Hiroaki Shimizu, Mika Watanabe, Teiji Tominaga

Research output: Contribution to journalArticlepeer-review


A 61-year-old male presented with left hand motor weakness associated with cerebral infarction in the right frontal lobe. Right common carotid angiography demonstrated a 66% stenosis and carotid duplex scan demonstrated intermediate echogenic plaque, indicating typical carotid plaque. Carotid endarterectomy was performed 22 weeks after the ischemic onset. During exposure of the carotid artery, a soft and yellowish mass (5 x 5 mm) was observed in the lateral wall of the carotid bulbus, which was not covered with adventitia but with thin connective tissue. The mass was removed en-bloc with a small part of the surrounding arterial wall combined with ordinary endarterectomy. The artery was closed with a collagen-impregnated polyester patch graft (Hemashield patchTM) to maintain adequate arterial lumen. Histological examination of the removed plaque confirmed that atheroma had protruded from the intima through the media as well as the adventitia and formed an extra-arterial mass. Such a case requires great care to dissect the carotid artery to prevent premature disintegration of the atheroma.

Original languageEnglish
Pages (from-to)434-437
Number of pages4
JournalNeurologia Medico-Chirurgica
Issue number9
Publication statusPublished - 2006 Sept


  • Atherosclerosis
  • Carotid endarterectomy
  • Penetrating atheroma
  • Plaque


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