Reactive lymphocyte - Revision history

Prab: /* Morphology */

2025-02-21T23:02:15Z

Morphology

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	== Morphology ==		== Morphology ==

	~~[[File:Atypical_lcyte.jpg\|thumb\|left\|Atypical lymphocyte showing characteristic features.]]~~

	Reactive lymphocytes are characterized by their increased size, often measuring 12-30 micrometers in diameter. They have abundant cytoplasm, which can appear basophilic and may contain vacuoles. The nucleus of a reactive lymphocyte is often irregularly shaped, with a coarse chromatin pattern. The nucleoli may be prominent, and the nuclear membrane can be indented or folded.		Reactive lymphocytes are characterized by their increased size, often measuring 12-30 micrometers in diameter. They have abundant cytoplasm, which can appear basophilic and may contain vacuoles. The nucleus of a reactive lymphocyte is often irregularly shaped, with a coarse chromatin pattern. The nucleoli may be prominent, and the nuclear membrane can be indented or folded.

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2025-02-21T14:15:16Z

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← Older revision		Revision as of 14:15, 21 February 2025
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	~~'''~~Reactive lymphocyte''' is a type of [[white blood cell]] that has undergone changes in response to an [[infection]] or [[immune response]]. Reactive lymphocytes are larger than typical lymphocytes and have a different appearance under a microscope. They are often seen in blood tests during or after an infection, especially viral infections such as [[Epstein-Barr virus]] or [[cytomegalovirus]].		== Reactive Lymphocyte ==

	~~== Overview ==~~		[[File:Reactive_lymphocyte_closeup.JPG\|thumb\|right\|Close-up of a reactive lymphocyte.]]

	[[~~Lymphocytes~~]] are a ~~type~~ of ~~white blood cell that play a key role~~ in the ~~body'~~s [[immune ~~system~~]]. They ~~are responsible for fighting off infections~~ and ~~diseases~~. ~~When the body~~ is ~~exposed to an infection or other foreign substance~~, ~~lymphocytes become activated and undergo changes to become reactive lymphocytes~~. ~~These cells are larger~~ and ~~have a different appearance than typical lymphocytes~~.		A '''reactive lymphocyte''' is a type of [[lymphocyte]] that has been activated in response to an antigen. These cells are typically larger than normal lymphocytes and exhibit a variety of morphological changes. Reactive lymphocytes are often seen in the context of [[viral infection]]s, such as [[infectious mononucleosis]], and other immune responses.

			== Morphology ==

			[[File:Atypical_lcyte.jpg\|thumb\|left\|Atypical lymphocyte showing characteristic features.]]

			Reactive lymphocytes are characterized by their increased size, often measuring 12-30 micrometers in diameter. They have abundant cytoplasm, which can appear basophilic and may contain vacuoles. The nucleus of a reactive lymphocyte is often irregularly shaped, with a coarse chromatin pattern. The nucleoli may be prominent, and the nuclear membrane can be indented or folded.

	== Causes ==		== Causes ==

	Reactive lymphocytes are typically seen in response to ~~an infection, especially viral infections. They can also be seen in response to certain medications, [[autoimmune diseases]], and certain types of [[cancer]].~~		Reactive lymphocytes are typically seen in response to:

	~~== Diagnosis ==~~		* [[Viral infections]] such as [[Epstein-Barr virus]] (EBV), [[cytomegalovirus]] (CMV), and [[HIV]].
			* [[Bacterial infections]] like [[tuberculosis]] and [[brucellosis]].
			* [[Autoimmune disorders]] such as [[systemic lupus erythematosus]] (SLE).
			* [[Drug reactions]] and [[allergic reactions]].

	Reactive lymphocytes are often identified during a [[complete blood count]] (CBC) test. This is a common blood test that measures the number and types of cells in the blood. If a high number of reactive lymphocytes are found, it may indicate an ongoing or recent infection or other immune response.		== Clinical Significance ==

	~~== Treatment ==~~		The presence of reactive lymphocytes in a [[blood smear]] can be an important diagnostic clue. In the context of infectious mononucleosis, for example, the presence of atypical lymphocytes is a hallmark finding. Reactive lymphocytes can also be seen in other conditions, and their presence should be interpreted in conjunction with clinical findings and other laboratory tests.

	Treatment for reactive lymphocytes typically involves treating the underlying cause, such as an infection or autoimmune disease. In some cases, no treatment may be necessary, as the reactive lymphocytes may return to normal on their own once the infection or immune response has resolved.		== Related Pages ==

	== ~~See also~~ ==

	* [[Lymphocyte]]		* [[Lymphocyte]]
	* [[~~White blood cell~~]]		* [[Infectious mononucleosis]]
			* [[Epstein-Barr virus]]
			* [[Cytomegalovirus]]
	* [[Immune system]]		* [[Immune system]]
	* [[Infection]]
	* [[Autoimmune disease]]
	* [[Cancer]]

	~~[[Category:Medical terms]]~~
	~~[[Category:Immunology]]~~
	[[Category:Hematology]]		[[Category:Hematology]]
			[[Category:Immune system]]
	~~{{stub}}~~
	~~==Reactive lymphocyte==~~
	~~<gallery>~~
	~~File~~:~~Reactive lymphocyte closeup.JPG\|Reactive lymphocyte closeup~~
	~~File:Atypical lcyte.jpg\|Atypical lymphocyte~~
	~~File:Atypical lcyte.jpg\|Atypical lymphocyte~~
	~~</gallery>~~

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2025-02-20T01:17:37Z

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← Older revision		Revision as of 01:17, 20 February 2025
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	{{stub}}		{{stub}}
			==Reactive lymphocyte==
			<gallery>
			File:Reactive lymphocyte closeup.JPG\|Reactive lymphocyte closeup
			File:Atypical lcyte.jpg\|Atypical lymphocyte
			File:Atypical lcyte.jpg\|Atypical lymphocyte
			</gallery>

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2024-02-23T11:47:52Z

CSV import

New page

'''Reactive lymphocyte''' is a type of [[white blood cell]] that has undergone changes in response to an [[infection]] or [[immune response]]. Reactive lymphocytes are larger than typical lymphocytes and have a different appearance under a microscope. They are often seen in blood tests during or after an infection, especially viral infections such as [[Epstein-Barr virus]] or [[cytomegalovirus]].

== Overview ==

[[Lymphocytes]] are a type of white blood cell that play a key role in the body's [[immune system]]. They are responsible for fighting off infections and diseases. When the body is exposed to an infection or other foreign substance, lymphocytes become activated and undergo changes to become reactive lymphocytes. These cells are larger and have a different appearance than typical lymphocytes.

== Causes ==

Reactive lymphocytes are typically seen in response to an infection, especially viral infections. They can also be seen in response to certain medications, [[autoimmune diseases]], and certain types of [[cancer]].

== Diagnosis ==

Reactive lymphocytes are often identified during a [[complete blood count]] (CBC) test. This is a common blood test that measures the number and types of cells in the blood. If a high number of reactive lymphocytes are found, it may indicate an ongoing or recent infection or other immune response.

== Treatment ==

Treatment for reactive lymphocytes typically involves treating the underlying cause, such as an infection or autoimmune disease. In some cases, no treatment may be necessary, as the reactive lymphocytes may return to normal on their own once the infection or immune response has resolved.

== See also ==

* [[Lymphocyte]]
* [[White blood cell]]
* [[Immune system]]
* [[Infection]]
* [[Autoimmune disease]]
* [[Cancer]]

[[Category:Medical terms]]
[[Category:Immunology]]
[[Category:Hematology]]

{{stub}}