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General Pathology I v Introduction v Methods. Pathology science on diseases – causes (etiology) – mechanisms of formation (pathogenesis) – development.

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Presentation on theme: "General Pathology I v Introduction v Methods. Pathology science on diseases – causes (etiology) – mechanisms of formation (pathogenesis) – development."— Presentation transcript:

1 General Pathology I v Introduction v Methods

2 Pathology science on diseases – causes (etiology) – mechanisms of formation (pathogenesis) – development (prognosis)

3 Pathology v general v special – organ – nosological (nosos= illness)

4 Methodology of Pathology Observation subject u necropsy (autopsy) u biopsy u cytology u experiment – animals – tissue cultures

5 Methodology of Pathology Observation level u macroscopy u microscopy u ultrastructure Special methods u histochemistry u immunohistochemistry u quantitative (computer) image analysis u genetic methods –FISH, PCR, CGH, …

6 Autopsy u After the 2 nd world war standing decrease v abroad < 10%, Czech Rep. < 50% u Aims –clinicopathological diagnosis –cause of death –dg. errors –therapy effects assessment –data on old and new diseases –teaching –event. medicolegal aspects of death

7 Autopsy u dissection method unchanged since the end of 19th century u changes in taking material for special methods & their employment to cope with clinical questions

8 Clinicopathological Diagnosis u Morbus principalis u Complicationes u Causa mortis u Inventus accesorius u Epicrisis

9 Biopsy u After the 2 nd world war standing increase u Aims – nosological diagnosis – tumour pathology – staging, grading – evaluation of therapy efficiency

10 „Classical“ Biopsy (formol paraffin technique ) u simple may be done in two days u immuno reactions two days more u further sectioning two days more u oncol. dg. - WHO classification

11 Peroperation Biopsy- Frozen section u reported DURING MINUTES !!! u morphological artefacts (combination with cytology) u limited extensity of investigation u limited time

12 Cytology u After the 2 nd world war standing increase u Aims – screening – nosological diagnosis – evaluation of therapy efficiency

13 Morphological Diagnostic Methods v Clinical v Pathological

14 Morphological Diagnostic Methods v Clinical: v macroscopy of lesions v visible with the naked eye v invisible with the naked eye - IMAGING (X-ray, sonography, scintigraphy, endoscopy, CT,…) v magnifying glass - colposcopy

15 Morphological Diagnostic Methods v Pathological v macroscopy v microscopy v ultrastructure v IMAGING

16 Morphometric Investigations objectivisation & refinement of diagnostic methods staging ( e.g. malignant melanoma) grading ( e.g. kidney carcinoma)

17 Pathology an extremely exciting medical specialty helping to understand & treat the diseases via diagnostic service for all other specialties


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