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Samenvatting Overzicht pathologie

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Dit document bevat een kapstok van de onderdelen van pathologie, gebaseerd op de slides van prof Tousseyn.

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Uploaded on
July 15, 2024
Number of pages
5
Written in
2023/2024
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PATHOLOGIE
1. Rol van de hematopatholoog in de diagnostiek van hematologische aandoeningen
1.1. Anatomie en fysiologie van de lymfoïde weefsels
- Centrale vs perifere lymfoïde weefsels
- Primaire vs secundaire lymfoïde weefsels
- CD-merkers
1.2. Rol van de hematopatholoog in het diagnostisch proces
1.2.1. Conventionele pathologie: classificatie: karakterisering van maligne cellen
- Verdere investigatie: relatief vs neoplastisch
- Prelevatie van het juist staal: beenmerg en lymfoïd weefsel (excisie vs CNB vs FNAC)
- Klassiek lichtmicroscopisch onderzoek: architectuur, cytologisch onderzoek en
immunohistochemisch onderzoek
- Aanvullende moleculair-genetisch onderzoek (wkn): PCR vs FISH vs NGS
1.2.2. Biomerker detectie
- Expressie van biomerkers in/op tumorcellen
- Samenstelling van tumor-micromilieu bepaalt prognose
1.2.3. Therapeutic decision making: targeted therapy
- Monoclonale antilichamen
- Opsporen van targetable mutations dmv NGS (GCB en ABC)




2. Reactieve lymfadenopathies: Aandoeningen van het lymfoïd weefsel
2.1. Inleiding
- Reactieve processen vs tumorale processen
- Microarchitectuur van een lymfeklier
2.2. Folliculaire hyperplasie (B-cellen)
- Primaire B-follicle vs Secondary B-follicle
- Casus: Kind, 4j, warm, rood, pijnlijk gezwollen cervicale lymfeklieren
◦ Reactieve aandoeningen gelokaliseerd ter hoogte van de B-follikel of folliculaire
hyperplasie
◦ Morfologische kenmerken
◦ Functionele betekenis
◦ Differentiaal diagnose: folliculair lymfoom




1

, 2.3. Paracorticale hyperplasie (T-gebied)
2.3.1. Diffuse vorm of ‘bonte pulpa hyperplasie’
- Virale infectie: EBV, CMV, HSV
- Hypersensitiviteit: geneesmiddel-geïnduceerd
- Postvaccinatie
2.3.2. Nodulaire vorm
- Dermatopatische lymfadenopathie
- Casus: Jongen, 19j, jeukende huidrash
◦ Morfologische kenmerken
◦ Functionele betekenis
◦ Differentiaal diagnose: T-cel lymfoom vd huid
2.4. Sinus hyperplasie of sinus histiocystose (niet specifiek)
- Kenmerken: Niet verteerbaar pigment, hemofagocytair syndroom en niet-specifieke
immuunrespons
- Casus: Vrouw, 84j, roker met longcarcinoom
- Casus: Man, 40j, tattoo laten zetten
- Casus: Vrouw, 23j, borstimplantaten
◦ Morfologische kenmerken (voor de 3 casussen)
◦ Functionele betekenis (voor de 3 casussen)
2.5. Granulomateuze lymfadenitis
2.5.1. Necrotiserende granulomateuze lymfadenitis (NGL)
2.5.1.1. Niet-suppuratief NGL
- Casus: Man, 32j, TBC, centrale necrose: verkazing + perifere meerkernige reuscellen
2.5.1.2. Suppuratief NGL
- Casus: Meisje, 11j, kattenkrab ziekte: klierzwelling + stervormige necrose
(Bartonella henselae)
- Casus: Man, 24j, chlamydia/syfilis
2.5.2. Niet-necrotiserende granulomateuze lymfadenitis (N-NGL)
- Sarcoidose
- Casus: Vrouw, 40j, koorts, verlamming, klierzwelling, erythema nodosum
onderbenen en dyspnee




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