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Cabot's rings

Authoring team

Richard Cabot described Cabot ring in the blood smears of anaemic patients as ring-shaped structures. The physiological mechanism of Cabot ring is unclear, it is reported to involve arginine-rich histones and non-haemoglobin iron.

It is also seen in severe haemolytic anaemias and pernicious anaemia, lead poisoning, homozygous thalassemia, and splenectomy.

Reference

  1. Erdem N et al. A hundred years after the first article, a recollection: Cabot ring. Korean J Intern Med. 2015 Dec 28;31(1):199

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