Tumour classification and nomenclature Flashcards
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.
Carcinomas
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?
Adenocarcinoma
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?
Colonic adenocarcinoma
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.
e.g. rhabdomyosarcoma
What are the prefixes for the following mesenchymal tissues?
Smooth muscle Skeletal muscle Fibrous tissue Bone Cartilage Blood vessels Adipose tissue
Leiomyo- Rhabdomyo- Fibro- Osteo- Chondro- Angio- Lipo-
What name is given to a benign tumour of the melanocytes?
Melanocytic nevus
