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Samenvatting histopathologie: Long, 2e bachelor biomedische wetenschappen

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Samenvatting histopathologie: Long 2e bachelor, 1e semester Biomedische wetenschappen

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Uploaded on
March 19, 2024
Number of pages
4
Written in
2022/2023
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Pathologie van de long

LONGKANKER

Ontstaat in luchtwegen, soms in alveoli = alveolair carcinoom

Chemische prikkel (vb. sigaret) -> epitheel wordt beschadigd en verkeerd heropgebouwd (plaveisel)

Invasief carcinoom = epitheel wordt doorbroken

Symptomen:

 Chronische hoest
 Bloed ophoesten
 Koorts
 Pijn

Behandeling:

 Chirurgie
 Bestraling
 Chemotherapie
 Immunotherapie
 Targetted therapie

Klassificatie:

 Small cell lung cancer (SCLC): neuro-endocriene origine
 Non-small cell lung cancer (NSCLC): epitheelcel is basiscel

klassificatie zorgt voor:

 Prognose: Hoe lang gaat patiënt nog leven? -> vergelijken met voorgangers
 Behandeling: Wordt gepersonaliseerd
 Pathogenese: Uit welke cel ontstaat het?
 Epidemiologie

Screaning is moeilijk: kan niet makkelijk aan bronchiolen geraken -> zeer invasieve methode met
buisje door de neus naar longen

Non-small cell lung cancer

 Plaveiselcelcarcinoma (SCC)= tumor met plaveiselepitheel -> differentiatiegraad = hoe hard
lijkt de tumor nog op de moedercel? Vb: ongedifferentieerde tumor: niets te herkennen,
enkel dat cellen dicht op elkaar liggen
 Papillair
 Heldercellig
 Kleincellig
 Basaloid: lijkt op basale epitheelcellen
 >90% rokers, meestal mannen
 Ontstaat centraal, tumoruitbreiding: vaak locoregionaal
 Genetica: EGFR gen mutatie, K-RAS, Her2 …
 Adenocarcinoma: kliertype, kan klierbuizen vormen en individueel slijm vormen
 Acinair
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