Cabot ring Information and Courses from MediaLab, Inc.

These are the MediaLab courses that cover Cabot ring and links to relevant pages within the course.

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CLIA Hematology / Hemostasis Review
Identify the object contained in the cell in this illustration indicated by the arrow:	View Page
Identify the object contained in the cell in this illustration indicated by the arrow:	View Page

Erythrocyte Inclusions - Wright Stained Smears
Single erythrocyte inclusions which are large, round, smooth and purplish-blue staining are most likely:	View Page
The erythrocyte inclusions which are thin, red-purple staining strands of varying shapes are called:	View Page
Cabot rings may be seen in rare occasions in patients who have:	View Page
Degenerated erythrocyte cytoplasmic organelles which contain iron are:	View Page
Match the names of the inclusions with their corresponding diagrams.	View Page
Which of the following statements best describes the appearance of Cabot rings?	View Page
Identify the conditions in which Cabot rings are occasionally seen.	View Page
What are Cabot rings? Thin, red-violet-staining strands in the shape of rings, figure eights, or shapes of the letter B may on rare occasions be seen in erythrocytes. These structures are called Cabot rings. Although the origin of Cabot rings continues to be illusive, they are not nuclear fragments since they test Feulgen negative. The rings are probably microtubules remaining from a mitotic spindle. Cabot rings have been observed in a few cases of megaloblastic anemia, lead poisoning and other disorders of erythropoiesis, as well as, after a splenectomy.	View Page
Cabot Rings This slide is a picture of erythrocytes which contain Cabot rings.	View Page
More Cabot Rings Another example of Cabot rings in the cell in the center.	View Page
Cabot Ring Impersonation The cell in this field showing a dark refractile ring is an artifact which might be mistaken for a Cabot ring.	View Page
What is Erythrocyte inclusion? Erythrocyte inclusion is a term used to describe structures that may be present in red cells. The inclusions discussed in this course are: reticulocyte - Wright-Giemsa stain (polychromasia)basophilic stipplingHowell-Jolly bodiesPappenheimer bodies (Wright-Giemsa stain)siderotic granules (iron stain)Cabot rings	View Page