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anuj
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Cabot's Ring
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04.08.04 (4 years ago)
#1
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 hi i dont have a question with options...just a small doubt..in patho...can someone please tell what are cobot rings... ....thaks
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RxPG_Team
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04.16.04 (4 years ago)
#2
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Cabot's Ring
Cabot’s ring is indicated by the arrow. Also anisocytosis of the erythrocytes and several stomatocytes
Definition: Loop shaped or "8"- shaped occlusion found in erythrocytes during failure of erythropoiesis. The occlusion is probably formed from part of a mitotic spindle.
Occurrence in blood:
normally not present
Cabot's ring bodies
Also known as:
Cabot's ring
Cabot-Schleip rings
Associated persons:
Richard Clarke Cabot
Karl Friedrich Wilhelm Schleip
Description:
They are delicate threadlike inclusions in the red blood cells in the peripheral blood of some patients with severe/megaloblastic anaemia. They may appear as rings, figures-of-eight, or twisted. They are blue-staining. Their origin is unknown. Contrary to Cabot’s belief, these structures have nothing to do with the nucleus or the nucleus’ membrane.
Bibliography:
R. Clarke Cabot:
A guide to the clinical examinations of the blood.
New York, 1896; 5th edition, 1904.
Ring bodies (nuclear remnants?) in anaemic blood. Journal of Medical Research, 1903, 9: 15-19.
Karl Schleip:
Atlas der Blutkrankheiten.
Vienna, 1907; 2nd edition with Albert von Alder (1888-1951), Berlin and Vienna, 1928, translated into English.
Hematological atlas : with a description of the technic of blood examination.
By Priv. doz. Dr. Karl Schleip ; English adaptation of text, by Frederic E. Sondern ; with 71 coloured illustrations. New York : Rebman, 1908.
The red cell inclusion is a Cabot ring . Cabot rings are red-purple staining threadlike filaments in the shape of a ring or figure 8 in the red blood cell, often in association with basophilic stippling. They may also appear as granules in a linear array rather than as complete rings. Cabot rings are thought to be microtubules from a mitotic spindle or remnants of the nuclear membrane. Cabot rings are seen in severe anemia including megaloblastic anemia, leukemia and lead poisoning. They are distinguished from the ring forms of Plasmodium by their larger size and by the absence of a red chromatin mass
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RxPG_Team
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04.16.04 (4 years ago)
#3
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| chachoch wrote: |
From what I remember,
Cabot rings are found in Megaloblastic anemia. Reference is internet. Isn't this question from the latest set of Patho questions in Salgu?
Hehe... I remember being bogged down with this question until I thought of searching the internet.
Cheers
Dr. Kay |
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RxPG_Team
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04.16.04 (4 years ago)
#4
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| anuj wrote: |
| ya man its from salgu....you are great....thx alot i really searchd a lot for it.... |
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anuj
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04.16.04 (4 years ago)
#5
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thx team it is really of grt help thx a tonn
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Sanya
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09.22.04 (3 years ago)
#6
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Dear Dr-s!
Thank a lot for your generous help!
It is really amazing!
Sanya
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wondergirl
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12.10.05 (2 years ago)
#7
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they are seen in megaloblastic and hemolytic anemia!
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wondergirl
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12.10.05 (2 years ago)
#8
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oh yes and also in lead poisoning!
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