Tumour classification Flashcards
What is the role of surface epithelia?
Protection
What is the role of glandular epithelia?
Secretion (glands and ducts)
What is the name for a benign tumour of surface (non glandular/non secretory) epithelium?
Papilloma
What is the name for a benign tumour of glandular (secretory) epithelium?
Adenoma
Benign tumours of surface epithelium are further identified by what?
Name of cell type of origin eg. squamous cell
Benign tumours of glandular/secretory epithelium are further identified by what?
Name of glandular tissue of origin
What would a benign tumour of squamous surface epithelium be called?
Squamous cell papilloma
What would a benign tumour of ductal epithelium of the pancreas be called?
Pancreatic cystadenoma
What are the 4 exceptions to the nomenclature rules for benign epithelial tumours?
1) Melanoma
2) Lymphoma
3) Seminoma
4) Mesothelioma
What are malignant epithelial tumours called?
Carcinomas
How are malignant tumours of surface epithelium named?
Prefixing carcinoma with the cell of origin eg. squamous cell carcinoma
How are malignant epithelial tumours derived from glandular/ductal epithelium named?
Prefixing adenocarcinoma with the epithelium source eg. pancreatic adenocarcinoma
What is important to note when naming epithelial malignant tumours?
Reference is often made to the degree of differentiation in epithelial malignant tumours eg. moderately differentiated adenocarcinoma
What would a benign epithelial tumour of stratified squamous epithelium be called?
Squamous cell papilloma
What would a benign epithelial tumour of basal cells of the skin be called?
Basal cell papilloma
What would a benign epithelial tumour of transitional epithelium of the bladder be called?
Transitional cell papilloma
What would a benign epithelial tumour of the glandular epithelium of the liver be called?
Liver cell adenoma
What would a benign epithelial tumour of the glandular epithelium of the thyroid be called?
Follicular adenoma (as talking about thyroid follicles)
What would a malignant epithelial tumour of stratified squamous epithelium be called?
squamous cell carcinoma
What would a malignant epithelial tumour of basal cells of the skin be called?
basal cell carcinoma
What would a malignant epithelial tumour of transitional epithelium of the bladder be called?
Transitional cell carcinoma
What would a malignant epithelial tumour of the glandular epithelium of the colon be called?
colonic adenocarcinoma
What would a malignant epithelial tumour of the glandular epithelium of the breast be called?
breast adenocarcinoma