Image Based Question-65452

Identify the structure as marked by a “black arrow” in the blood smear of a patient shown below?

A. Cabot rings.

B. Spurr cells.

C. Burr cells.

D. Codocytes.

Correct Answer » A Explanation

Ans: A. Cabot rings

• They are thin, red-violet staining, thread like 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.
• Cabot rings have been observed in megaloblastic anemia, lead poisoning, severe anemia, leukemia, myelodysplastic syndromes, and other cases of dyserythropoiesis.