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Uitgebreide samenvatting Algemene pathologie - score examen: 17/20

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Wil je de leerstof van Algemene Pathologie overzichtelijk gebundeld hebben én gemakkelijker kunnen studeren aan de hand van duidelijke voorbeelden? Deze uitgebreide samenvatting brengt de belangrijkste leerstof samen in één gestructureerd document. De samenvatting bevat naast de theoretische uitleg ook veel concrete pathologievoorbeelden. Bij verschillende letsels wordt zowel het macroscopische als microscopische uitzicht besproken, waardoor je de leerstof gemakkelijker kunt koppelen aan wat je op beelden en preparaten ziet. Daarnaast bevat het document: - Afbeeldingen en visuele voorbeelden van pathologische letsels - Vergelijkingen tussen verschillende vormen van ontsteking en letsels - Duidelijke beschrijvingen van wat je op histologische beelden moet herkennen - Overzichtelijke opsommingen en structuren om grote hoeveelheden leerstof sneller te verwerken Ik heb ook een samenvatting voor het onderdeel "Oncologie" die op Stuvia te vinden is. Ik behaalde een 17/20 op het examen.

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Algemene pathologie
Inhoud
I. Inleiding ................................................................................................................ 9
Wat? .................................................................................................................... 9
Veterinaire patholoog ............................................................................................ 9
1. Definities & het diagnostisch proces ...................................................................... 9
1.1 Definities ........................................................................................................ 9
1.2 Het diagnostisch proces ................................................................................. 11
1.2.1 Diagnose ................................................................................................. 11
2. Methoden........................................................................................................... 12
3. Types onderzoeken ............................................................................................. 12
3.1 Natuurlijk voorkomende ziekte........................................................................ 12
3.2 Forensisch .................................................................................................... 13
3.3 Dood tijdens of na anesthesie ......................................................................... 13
3.4 Experimentele ziekte, toxicopathologie ........................................................... 13
3.5 Telepathologie ............................................................................................... 13
4. Macroscopisch onderzoek................................................................................... 14
4.1 Systematische benadering ............................................................................. 14
4.2 Probleem georiënteerde benadering ............................................................... 15
4.3 Ouderdomsgerelateerde veranderingen en andere incidentele lesies ................ 16
4.4 Postmortale veranderingen ............................................................................. 16
4.5 Staalname en bewaring .................................................................................. 16
5. Histologisch onderzoek ....................................................................................... 16
5.1 Standaard histologie ...................................................................................... 16
5.2 Enzymhistochemie ........................................................................................ 19
5.3 Histochemie voor specifieke substanties ........................................................ 19
5.4 Immunokleuringen ......................................................................................... 19
5.4.1 Immunohistochemie: immunoperoxidase ................................................. 20
5.4.2 Immunofluorescentie............................................................................... 20
6. Bijkomende technieken ....................................................................................... 21
6.1 Aantonen specifieke nucleotiden .................................................................... 21
6.1.1 In situ hybridisatie .................................................................................... 21

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, 6.2 Confocale laserscanningmicroscopie ............................................................. 21
6.3 Elektronenmicroscopie .................................................................................. 21
6.4 Microbiologie ................................................................................................ 21
6.5 Parasitologie ................................................................................................. 22
6.6 Serologie ....................................................................................................... 22
6.7 Moleculaire biologie....................................................................................... 22
6.8 Cytopathologie .............................................................................................. 22
6.9 Toxicologie .................................................................................................... 23
6.9.1 Staalname............................................................................................... 23
6.10 Beeldvorming .............................................................................................. 23
6.11 Genetica ..................................................................................................... 23
6.12 Fotografie .................................................................................................... 24
7. Casus interpretatie en klantenservice .................................................................. 24
7.1 Integratie en interpretatie ............................................................................... 24
7.2 Economische overwegingen ........................................................................... 24
7.3 Finaal rapport ................................................................................................ 24
8. Initiële en blijvende competentie van pathologen .................................................. 24
II. Celschade, celadaptatie, celdood en stofwisselingsstoornissen ............................ 25
1. Belangrijke basisprincipes ................................................................................... 25
1.1 Principe van homeostase ............................................................................... 25
1.2 Cellulaire reactie op stressoren/schadelijke stoffen ......................................... 25
1.2.1 Adaptatie: nieuwe “steady state” .............................................................. 25
1.2.2 Celbeschadiging: degeneratie: reversibel .................................................. 25
1.2.3 Celbeschadiging: celsterfte: irreversibel .................................................... 25
1.3 Een cel kan functioneel (biochemisch) beschadigd zijn en nog geen duidelijke
morfologische veranderingen vertonen ................................................................. 26
1.4 Reactie van cellen op schadelijke stimulus ...................................................... 26
1.5 Gevolgen van een schadelijke stimulus: .......................................................... 26
2. Oorzaken celschade ........................................................................................... 26
2.1 Hypoxie ......................................................................................................... 26
2.2 Fysische agentia ............................................................................................ 27
2.2.1 Mechanisch ............................................................................................ 27
2.2.2 Temperatuur ............................................................................................ 28
2.2.3 Straling ................................................................................................... 28

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, 2.2.4 Elektrisch geïnduceerd letsel (elektrocutie) ............................................... 28
2.3 Infectieuze agentia ......................................................................................... 29
2.4 Nutritioneel ................................................................................................... 29
2.5 Genetisch ..................................................................................................... 29
2.6 Activiteit........................................................................................................ 30
2.6.1 Toegenomen workload ............................................................................. 30
2.6.1 Verminderde belasting/inactiviteit ............................................................ 30
2.7 Chemisch ..................................................................................................... 30
2.8 Immunologisch ............................................................................................. 31
2.9 Veroudering ................................................................................................... 31
2.9.1 Veroudering, senescentie ......................................................................... 31
2.9.2 Incidenteel teruggevonden lesies bij oudere dieren .................................... 31
3. Mechanismen celschade .................................................................................... 32
3.1 Schade aan mitochondriën ............................................................................ 32
3.2 Accumulatie van reactieve zuurstofradicalen ................................................... 33
3.2.1 Oxidatieve stress ..................................................................................... 33
3.3 Membraanschade .......................................................................................... 35
3.4 DNA en eiwitschade ....................................................................................... 36
3.4.1 DNA-schade ............................................................................................ 36
3.4.2 EW schade .............................................................................................. 36
3.5 Verstoring van calcium homeostase ................................................................ 37
4. Morfologie adaptatie en beschadiging .................................................................. 37
4.1 Verandering grootte, aantal, uitzicht (adaptatie: behoud levensvatbaarheid &
functie)............................................................................................................... 37
4.1.1 Hyperplasie ............................................................................................. 37
4.1.2 Hypertrofie .............................................................................................. 38
4.1.3 Atrofie ..................................................................................................... 39
4.1.4 Metaplasie .............................................................................................. 41
4.1.5 Dysplasie ................................................................................................ 42
4.2 Reversibele celschade (celbeschadiging: degeneratie: reversibel) ..................... 42
4.2.1 Waterhuishouding.................................................................................... 42
4.2.2 Vethuishouding ....................................................................................... 45
4.3 Irreversibele celschade en celdood (celbeschadiging: celsterfte/necrose:
irreversibel) ........................................................................................................ 46

3

, 4.3.1 Geprogrammeerde celdood ...................................................................... 46
4.3.2 Niet-geprogrammeerde celdood: oncotische necrose ................................ 52
4.4 Intracellulaire stofwisselingsstoornissen ......................................................... 64
4.4.1 Stoornissen waterhuishouding.................................................................. 64
4.4.2 Stoornissen koolhydraatmetabolisme ....................................................... 65
4.4.3 Stoornissen vetmetabolisme .................................................................... 68
4.4.4 Stoornissen eiwitmetabolisme ................................................................. 75
4.4.5 Pigment stofwisselingsstoornissen ........................................................... 77
4.4.6 Keratine stofwisselingsstoornissen ........................................................... 90
4.5 Extracellulaire stofwisselingsstoornissen ........................................................ 93
4.5.1 Stoornissen extracellulaire matrix ............................................................. 93
4.5.2 Stoornissen mineralenstofwisseling .........................................................104
4.5.3 Stoornissen urinezuurmetabolisme .........................................................108
4.5.4 Concrement vorming ..............................................................................109
5. Postmortale veranderingen .................................................................................112
5.1 Rigor mortis ..................................................................................................112
5.2 Algor mortis ..................................................................................................112
5.3 Hemoglobine inhibitie ...................................................................................112
5.4 Gal imbibitie .................................................................................................113
5.5 Hypostase ....................................................................................................113
5.6 Pseudomelanose ..........................................................................................113
5.7 Dodenogen ..................................................................................................113
5.8 Postmortale autolyse ....................................................................................113
5.9 Putrificatie....................................................................................................113
5.10 Postmortale bloedklonter ............................................................................114
5.11 Premortale en postmortale ruptuur ..............................................................114
III. Circulatiestoornissen ........................................................................................114
1. oedeem ............................................................................................................114
1.1 Definitie .......................................................................................................114
1.2 Morfologie ....................................................................................................114
1.3 Histologisch .................................................................................................115
1.4 Basisprincipes ..............................................................................................115
1.5 Pathogenese ................................................................................................116


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