lymph node pathology l.
Download
Skip this Video
Download Presentation
Lymph node pathology

Loading in 2 Seconds...

play fullscreen
1 / 30

Lymph node pathology - PowerPoint PPT Presentation


  • 666 Views
  • Uploaded on

Lymph node pathology. Lymph node histology. Functions Filtration of lymph Processing of Ag Differentiation of lymphocytes. Secondary lymphoid follicle Germinal centre mantle. Terminology. Lymphadenopathy Lymphadenomegaly Lymphadenitis Lymphoproliferation Lymphoma

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Lymph node pathology' - brad


Download Now An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide2

Lymph node histology

Functions

Filtration of lymph

Processing of Ag

Differentiation of lymphocytes

slide3

Secondary lymphoid follicle

Germinal centre

mantle

terminology
Terminology
  • Lymphadenopathy
  • Lymphadenomegaly
  • Lymphadenitis
  • Lymphoproliferation
  • Lymphoma
  • Enlargement of LN: inflammation
  • Tumor – primary/secondary
lymphadenitis acute or chronic
Lymphadenitisacute or chronic

Classification

predominant histologic pattern

etiology

Rarely biopsied

lymphadenitis etiology
Lymphadenitis - etiology

MICROBIAL

  • viral
  • bacterial, mycobacterial
  • fungal
  • protozoal

NONMICROBIAL - autoimmune

storage dis.

foreign mat.

miscel.

lymph node inflammation

Lymph node inflammation

Lymph node hyperplasia:

1. follicular

2. paracortical

3. sinuses

4. mixed patterns

lymph node inflammation patterns
Lymph node inflammation - patterns
  • Follicular hyperplasia

bacteria, RA, HIV(early), syphilis,

Castleman dis.

  • Paracortical hyperplasia

viruses, dermatopathies, vaccination,

drug hypersensitivity, Kikuchi, SLE,

draining pus or carcinoma

lymphadenitis histological patterns
Lymphadenitis - histological patterns
  • sinusoidal hyperplasia - lymphangiography, Whipple dis., sin. histiocytosis with massive lymphadenopathy, draining carcinoma
  • granulomas - TB, other mycobact., leprosy, Whipple, fungi, berylliosis, sarcoidosis,
  • Granulomatous-purulent:cat scratch, tularemia, lymphogr. venereum,Yersinia
  • mixed patterns: toxoplasmosis
slide30

Sinus histiocytosis

with massive lymphadenopathy