Grading and Staging Cancer

Description
-describe a tumour
-these methods describe the extent of the tumor, the extent to which malignancy has increase in size, the involvement of regional nodes and metastatic development

Grading vs Staging Cancer
-classifies the severity and clinical aspect of the cancer and the degree of metastasis at diagnosis

Grading vs staging a tumour
-classifies the cellular aspects of the cancer and is an indicator of tumour growth rate and spread

Grading
Cells differ slightly from normal cells and are well differentiated (mild dysplasia)

Grading
-Cells are more abnormal and are moderately differentiated (moderate dysplasia)

Grading
-Cells are very abnormal and are poorly differeniated (severe dysplasia)

Grading
-Cells are immature (anaplasia) and undifferentiated; cell of origin is difficult to determine

Staging
Carcinoma in situ

Staging
-Tumor limited to the tissue of origin; localized tumor growth

Staging
-Limited local spread

Staging
-Extensive local and regional spread

Staging
-Distant metastasis