Karyolysis

Karyolysis (from Greek κάρυον karyon—kernel, seed, or nucleus), and λύσις lysis from λύειν lyein, "to separate") is the complete dissolution of the chromatin of a dying cell due to the enzymatic degradation by endonucleases. The whole cell will eventually stain uniformly with eosin after karyolysis. It is usually associated with karyorrhexis and occurs mainly as a result of necrosis, while in apoptosis after karyorrhexis the nucleus usually dissolves into apoptotic bodies.[1]

Morphological characteristics of karyolysis and other forms of nuclear destruction.

Disintegration of the cytoplasm, pyknosis of the nuclei, and karyolysis of the nuclei of scattered transitional cells may be seen in urine from healthy individuals as well as in urine containing malignant cells. Cells with an attached tag of partially preserved cytoplasm were initially described by Papanicolaou and are sometimes called comet or decoy cells. They may have some of the characteristics of malignancy, and it is therefore important that they be recognized for what they are.[2]

Additional images

gollark: You mean "ships will have sensors on them".
gollark: Apparently you can capture the old "tomato, tomato" saying in writing as "tomæto tomāto".
gollark: You also do have to learn to walk.
gollark: But evolved biological stuff is complex, generally involves weird tradeoffs and things randomly related to other things, and is generally not designed for simple maintenence.
gollark: You probably can do a lot better than evolution has at working in *our current environment*, where food supply is mostly a non-issue but thinking is a lot more important, at least.

See also

References

  1. Cotran; Kumar, Collins (1998). Robbins Pathologic Basis of Disease. Philadelphia: W.B Saunders Company. ISBN 0-7216-7335-X.
  2. Bibbo, Marluce (2008). Comprehensive Cytopathology (Third Edition). Elsevier Inc. pp. 409–437.
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