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Case report
Republished: A lotus root-like appearance in carotid stenosis on optical coherence tomography
  1. Hyukwon Chang1,
  2. Hyuck Jun Yoon2,
  3. Jeong-Ho Hong3,
  4. Chang-Hyun Kim4,
  5. Sung-il Sohn3,
  6. Chang-Young Lee4
  1. 1Department of Radiology, Keimyung University Hospital, Daegu, Republic of Korea
  2. 2Department Cardiology, Keimyung University Hospital, Daegu, Republic of Korea
  3. 3Department of Neurology, Keimyung University Hospital, Daegu, Republic of Korea
  4. 4Department of Neurosurgery, Keimyung University School of Medicine, Daegu, Republic of Korea
  1. Correspondence to Dr Chang Hyun Kim, Department of Neurosurgery, Keimyung University Hospital, Dal-seong no. 56, Jung-gu, Daegu 607-712, Republic of Korea; ppori2k{at}


An 82-year-old man visited the outpatient clinic of our stroke centre because of dizziness. He had a previous history of stroke without definite sequelae. Severe stenosis in the left proximal internal carotid artery (ICA) was seen on Doppler sonography. Conventional angiography revealed focal severe stenosis with ‘string sign’ in the left proximal ICA and delayed distal run off. Optical coherence tomography showed multiple channels surrounding a narrowed central lumen (lotus root-like appearance). Carotid stent placement with a protection device was done without complications. The patient was discharged in good condition 5 days after the procedure.

  • Angioplasty
  • Balloon
  • Cervical
  • Stenosis

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