What is the role of biopsy in the workup of Kawasaki disease?

Updated: Jul 29, 2018
  • Author: Tina K Sosa, MD; Chief Editor: Russell W Steele, MD  more...
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Biopsy is rarely performed or necessary to make the diagnosis; therefore, most specimens are obtained from autopsies or from patients who have had diseased arterial segments removed during bypass operations. Early findings show acute destruction of the media of the vessels by neutrophils, with loss of elastic fibers. Later, the infiltrate is replaced by lymphocytes, monocytes, and fibroblasts involved in arterial remodeling. Chronic lesions show intimal proliferation, neoangiogenesis, and vascular occlusion.

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