Cell Pathology Flashcards
Tumor
any mass forming lesion
Neoplasm
autononymous growth of tissue wich has escaped normal dimensions of cell proliferation (Benign or Malignant)
Hamartomas
localised, normal tissue cells but abnormal architecture (benign)
Heterotopia
Normal tissue cells at wrong place
Difference Malignant and Benign Tumor (4 Points)
- Invasion
- Metastasis
- Differentiation
- Growth pattern
Spread of Malignant neoplasms
- Direct extension
- Lymphatic
- Haematogenous
- Transcoelomic (body cavaties)
- Perineural
Lethal cell injury
Cells die
Sublethal cell injury
cells get injured –> may be reversible or progress into cell death
List Causes of cell injury
- oxygen deprivation
- chemical agents
- infectious agents
- Immune response
- Genetic disorders
- Nutritinal Imbalance
- Physical agents
- Aging
Atrophy
cell size or organ size shrinking due to cell substance loss (size)
Hypertrophy
increased cell size –> results into organ increase size
physiological or pathological
due to 1. increased funtional demand or 2. hormonal stimmulation
Hyperplasia
inrease number of cells
pathological –> hormonal growht factors
physiological –> hormonal or compensatory
Metaplasia
reversible
cell type gets exchanged by another
Dysplasia
precancerous cells –> genetic and cytolocical cancer characteristics but without invasion
Necrosis
confluent cell death associated with inflammation