Cabot rings

Cabot ring
A – Cabot ring
B – Howell-Jolly body
Cabot ring

Cabot rings are thin, red-violet staining, threadlike strands in the shape of a loop or figure-8 that are found on rare occasions in red blood cells (erythrocytes). They are believed to be microtubules that are remnants from a mitotic spindle, and their presence indicates an abnormality in the production of red blood cells.[1] Cabot Rings, considerably rare findings, when present are found in the cytoplasm of red blood cells and in most cases, are caused by defects of erythrocytic production[2] and are not commonly found in the blood circulating throughout the body.[3]

  1. ^ Cite error: The named reference McPherson was invoked but never defined (see the help page).
  2. ^ "Cabot Rings - LabCE.com, Laboratory Continuing Education". www.labce.com. Retrieved 2017-05-04.
  3. ^ "Cabot's Rings". www.chronolab.com. Archived from the original on 2018-05-14. Retrieved 2017-05-04.