Flashcards in Tumour classification and nomenclature Deck (22):
For benign epithlial tumours, what is the first division with regards to classification?
Surface (non-glandular/non-secretory) -> papilloma
Glandular (secretory) -> adenoma
How may benign epithelial tumours of the surface (non-gladular/non-secretory) be further classified?
Name of CELL TYPE of origin -> (e.g. SQUAMOUS CELL)
e.g. squamous cell papilloma.
How may benign epithelial tumours of the gladular/secretory tissues be further classified?
Name of GLANDULAR TISSUE of origin -> (e.g. COLONIC)
e.g. pancreatic cystadenoma
What name is given to malignant epithlial tumours.
How would you name a malignant epithelial tumour of surface origin?
By prefixing CARCINOMA with the cell of origin.
e.g. squamous cell carcinoma
How would you name a malignant epithelial tumour of glandular origin?
What name would be given to a benign tumour derived from the basal cells of the skin?
Basal cell papilloma
What name would be given to a benign tumour derived from the transitional cells of the bladder?
Transitional cell papilloma
What name would be given to a benign tumour derived from liver cells?
Liver cell adenoma
What name would be given to a malignant tumour derived from glandular epithelia of the colon?
What name would be given to a malignant tumour derived from basal cells of the skin?
Basal cell carcinoma
How would you name a benign mesenchymal tumour?
With the suffix -oma preceded by the prefix for the tissue or cell of origin.
e.g. rhabdomyoma - benign tumour of skeletal muscle
How would you name a malignant mesenchymal tumour?
With the suffice -sarcoma preceded by the prefix for the tissue or cell of origin.
What are the prefixes for the following mesenchymal tissues?
What name is given to a benign tumour of the melanocytes?
Give examples of malignant tumours that defy the usual naming conventions.
CNS neoplasms (e.g. GBM, astrocytoma)
What are germ cell tumours?
Common in - gonads
Cells arise from germ cells.
e.g. seminoma, teratoma
What are embryonal tumours?
Occur in very young
Is a pleomorphic salivary adenoma benign or malignant?
Where might you find a carcinosarcoma?
What is a hamartoma?
- Non-neoplastic overgrowth of normal tissue
- Indigenous to the site of occurrence
- Developmental abnormalities
- Lung hamartoma