Tumour Classification

Question 1

What is the name of a benign tumour of surface epithelium?

Answer 1

Papilloma

Question 2

What is the name of a benign tumour of glandular/secretory/ductal epithelium?

Answer 2

Adenoma

Question 3

How are benign epithelial tumours further classified?

Answer 3

-Name of the cell type of origin (Squamous cell)
or
-Name of the glandular tissue of origin (colonic)

Question 4

Give an example of a benign tumour of squamous epithelium of the skin?

Answer 4

Squamous cell papilloma

Question 5

Benign tumour of ductal epithelium of the pancreas

Answer 5

Pancreatic cystadenoma

Question 6

What are malignant epithelial tumours called?

Answer 6

Carcinomas

Question 7

How are malignant tumours derived from surface epithelium named?

Answer 7

• From cell of origin

- e.g squamous cell carcinoma

Question 8

What are malignant epithelial tumours derived from glandular/ ductular epithelium called?

Answer 8

Adenocarcinomas

Question 9

What are malignant mesenchymal tumours called?

Answer 9

Sarcomas

Question 10

What is the suffix for a malignant mesenchymal tumour?

Answer 10

-Sarcoma

Question 11

What is the prefix for:

• Smooth muscle
• Skeletal muscle
• Adipose
• Blood vessel
• Bone
• Cartilage
• Fibrous

Answer 11

• smooth muscle= Leiomyo
• skeletal muscle= Rhabdomyo
• Adipose= Lipo
• Blood vessel= Angio
• Bone= Osteo
• Cartilage= Chondro
• Fibrous=Fibro

Question 12

What is a benign tumour of melanocytes called?

Answer 12

• Melanocytic Nevus

- Melanoma

Question 13

What is a malignant tumour of blood cells called?

Answer 13

• Leukemia
• Lymphoma
• Myeloma

Question 14

Name some types of CNS tumours

Answer 14

• Meningioma
• Astrocytoma (Glioblastoma Multiforme)
• Oligoendroglioma
• Ependymoma
• Medulloblastoma

Question 15

Where are germ cell tumours common? Give the main 2 types

Answer 15

• Gonads
• Seminomatous tumours= Seminoma
• Non-Seminomatous germ cell tumours = Teratoma (teeth/hair/muscle/cartilage/neural)

Question 16

Descrive embryonal tumours

Answer 16

• Occur age 5+
• Histological resemblance to embryonic cell of organ
• Retinoblastoma
• Nephroblastoma/ Wilms
• Neuroblastoma
• Hepatoblastoma

Question 17

What type of cancer makes up a Carcinosarcoma?

Answer 17

• malignant tumors

- consist of a mixture of carcinoma (epithelial cancer) & sarcoma (mesenchymal cancer)

Question 18

What type of cancer is a Pleomorphic salivary adenoma?

Answer 18

Benign tumour of salivary glands

Question 19

Name some malignant tumours with ‘benign’ names

Answer 19

• Melanoma
• Mesothelioma
• Myeloma
• Lymphoma

Question 20

Describe a Hamartoma?

Answer 20

• Non-Neoplastic/benign overgrowth (unconditional) of normal tissue
• Indigenous to the site of occurrence
• Developmental abnormalities
• Lung hamartoma

Question 21

What is a Choristoma?

Answer 21

• AKA Heterotrphic rests
• Nodules of organ parenchyma in another organ
• E.g normal pancreas nodule in stomach

Question 22

What is the benign tumour for the tissue of origin:

• Stratified squamous epithelium
• Basal cell of the skin
• Transitional epithelium of the bladder
• Wart of the skin
• Glandular epithelium of Colon
• Glandular epithelium of Thyroid

Answer 22

• Squamous cell papilloma
• Basal cell papilloma
• Transitional cell papilloma
• Squamous cell papilloma
• Colonic adenoma
• Thyroid adenoma

Question 23

What is the benign tumour for the tissue of origin:

• Smooth muscle
• Striated muscle
• Adipose tissue
• Blood vessels
• Bone
• Cartilage

Answer 23

• Leiomyoma
• Rhabdomyoma
• Lipoma
• Angioma/Haemangioma
• Osteoma
• Chondroma
• Fibroma