Difference between revisions of "Plasma cell"
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***Pale perinuclear crescentic - may be up to the size of the nucleus in active plasma cells. | ***Pale perinuclear crescentic - may be up to the size of the nucleus in active plasma cells. | ||
Images: | ===Images=== | ||
<gallery> | |||
Image: Multinucleated plasma cell -- high mag.jpg | Plasma cells - high mag. | |||
Image: Multinucleated plasma cell -- very high mag.jpg | Plasma cells - very high mag. | |||
Image: Multinucleated plasma cell -- extremely high mag.jpg | Plasma cells - extremely high mag. | |||
</gallery> | |||
<gallery> | |||
Image:Plasmacytoma_ultramini1.jpg | Plasma cells in a plasmacytoma. (WC) | |||
</gallery> | |||
==Neoplasia== | ==Neoplasia== | ||
Revision as of 01:35, 21 November 2013
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
Plasma cells - high mag.
Plasma cells - very high mag.
Plasma cells - extremely high mag.
Plasma cells in a plasmacytoma. (WC)
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.
- Plasma cell balanitis (Zoon balanitis).
Infectious:
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.
- ↑ Agarwal S, Smereka P, Harpaz N, Cunningham-Rundles C, Mayer L (July 2010). "Characterization of immunologic defects in patients with common variable immunodeficiency (CVID) with intestinal disease". Inflamm Bowel Dis. doi:10.1002/ibd.21376. PMID 20629103.