Difference between revisions of "Plasma cell"
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(importnat --- plasma cells) |
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*CD20 -ve | *CD20 -ve | ||
*CD56 -ve. | *CD56 -ve. | ||
==Lesions where plasma cells are important== | |||
===Selected lesions with plasma cells=== | |||
Neoplasms: | |||
*[[Plasma cell neoplasms]]. | |||
*[[Lymphoplasmacytic lymphoma]] - '''not''' truly plasma cells. | |||
*[[Inflammatory myofibroblastic tumour]] (inflammatory pseudotumour). | |||
*Classical [[Hodgkin lymphoma]]. | |||
Inflammatory conditions: | |||
*[[Inflammatory bowel disease]]] - esp. at crypt base. | |||
*[[Primary biliary cirrhosis]]. | |||
*[[Chronic gastritis]]. | |||
Infectous: | |||
*[[Syphilis]]. | |||
===Plasma cells are absent=== | |||
*[[Common variable immunodeficiency]]. | |||
==See also== | ==See also== | ||
Revision as of 03:12, 1 April 2012
The plasma cell is white blood cell that produces antibodies.
Microscopic
Features:
- Ovoid intermediate-small cell size ~ 12 micrometers:
- Cells slightly larger than red blood cells and neutrophils.
- Eccentric nucleus.
- Nucleus usu. hugs the cell membrane.
- "Clock-face" chromatin pattern.
- Small dots symmetrically rim the nuclear membrane - like the numbers on a clock.
- Abundant cytoplasm.
- Nucleus-to-cytoplasm ratio ~1:2
- Perinuclear hof (prominent Gogli apparatus).
- Pale perinuclear crescentic - may be up to the size of the nucleus in active plasma cells.
Images:
Neoplasia
Main article: Plasma cell neoplasms
Neoplasms derived from plasma cell are called plasma cell neoplasms.
IHC
Others:
- CD19 -ve.
- CD20 -ve
- CD56 -ve.
Lesions where plasma cells are important
Selected lesions with plasma cells
Neoplasms:
- Plasma cell neoplasms.
- Lymphoplasmacytic lymphoma - not truly plasma cells.
- Inflammatory myofibroblastic tumour (inflammatory pseudotumour).
- Classical Hodgkin lymphoma.
Inflammatory conditions:
- Inflammatory bowel disease] - esp. at crypt base.
- Primary biliary cirrhosis.
- Chronic gastritis.
Infectous:
Plasma cells are absent
See also
References
- ↑ 1.0 1.1 Humphrey, Peter A; Dehner, Louis P; Pfeifer, John D (2008). The Washington Manual of Surgical Pathology (1st ed.). Lippincott Williams & Wilkins. pp. 554. ISBN 978-0781765275.