Cabot rings: Difference between revisions
From haematologyetc.co.uk
(Created page with "'''Described by''': Richard Cabot (American physician in 1903) ---- '''Appearance''' They are rarely seen; however when present their appearance is of violet coloured thin strands, that form single or double loops. Most often they are seen in polychromatic red cells. <gallery widths="180px" heights="180px" > File:Cabot_ring.jpg|link={{filepath:Cabot_ring.jpg}} </gallery> <span style="font-size:90%"> '''Image:''' Cabot ring in 'figure of 8' appearance, within a...") |
No edit summary |
||
(One intermediate revision by the same user not shown) | |||
Line 10: | Line 10: | ||
<gallery widths=" | <gallery mode="nolines" widths="240px" heights="240px" border="1px" > | ||
File: | File:Cabot1.png|link={{filepath:Cabot1.png}} | ||
File:Cabot2.jpg|link={{filepath:Cabot2.jpg}} | |||
</gallery> | </gallery> | ||
<span style="font-size:90% | <span style="font-style:italic; font-size:90%;'' > | ||
'''Image:''' Cabot ring in 'figure of 8' appearance, within a pale (polychromatic) red cell | '''Image:''' Cabot ring in 'figure of 8' appearance, within a pale (polychromatic) red cell | ||
</span> | </span> | ||
Line 37: | Line 38: | ||
<div style="width: 95%; overflow: auto; border: 1px solid navy; font-size:100%"> | <div style="width: 95%; overflow: auto; border: 1px solid navy; font-size:100%"> | ||
{| class="wikitable" style="color: | {| class="wikitable" style="color:black; background-color:#ffffff;" cellpadding="15" | ||
!'''OCCUR IN STATES OF STRESSED HAEMATOPOIESIS, examples below''' | !'''OCCUR IN STATES OF STRESSED HAEMATOPOIESIS, examples below''' | ||
|- | |- |
Latest revision as of 16:27, 10 March 2023
Described by: Richard Cabot (American physician in 1903)
Appearance
They are rarely seen; however when present their appearance is of violet coloured thin strands, that form single or double loops. Most often they are seen in polychromatic red cells.
Image: Cabot ring in 'figure of 8' appearance, within a pale (polychromatic) red cell
Significance
They reflect stressed or disordered haematopoiesis
Pitfalls
Occasionally water entering during slide-fixation can cause a ring-like appearance affecting multiple cells, this will generally affect large numbers of cells.
Causes
OCCUR IN STATES OF STRESSED HAEMATOPOIESIS, examples below |
---|
Megaloblastic anaemias |
Myelodysplasia and myelofibrosis |
Drug effects. |
Pathobiology
These are residual microtubular structures that are believed to represent the remains of the mitotic spindle formed during cell division.