Tumor Nomenclature

Question 1

• Tumor –

Answer 1

casual for a neoplasm

Question 2

• Cancer –

Answer 2

casual for a malignant neoplasm

Question 3

• Adenoma –

Answer 3

a benign neoplasm of glandular epithelial origin

Question 4

• Adenocarcinoma –

Answer 4

a malignant neoplasm of glandular epithelial origin

Question 5

• Sarcoma –

Answer 5

a malignant neoplasm of mesodermal tissue origin (connective tissue) –bone, cartilage, smooth muscle, skeletal muscle, nerve, adipose tissue

Question 6

Mesodermal Tumor Nomenclature
* Prefix –

Answer 6

tissue of origin (for mesodermal tissues)
– Fibrous connective tissue = fibr, fibro

Question 7

Mesodermal Tumor Nomenclature
* Suffix –

Answer 7

benign or malignant
– Benign = “oma” “fibroma” = Benign neoplasm of fibroblasts
– Malignant = “sarcoma” “fibrosarcoma” = Malignant neoplasm of fibroblasts

Question 8

• Fibrous connective tissue (fibroblast)

Answer 8

– Benign –fibroma, myxoma *
– Malignant –fibrosarcoma

Question 9

• Adipose tissue (lipocyte)

Answer 9

– Benign - lipoma
– Malignant –liposarcoma

Question 10

• Bone (osteocyte)

Answer 10

– Benign –osteoma
– Malignant –osteosarcoma

Question 11

• Smooth muscle

Answer 11

– Benign –leiomyoma
– Malignant –leiomyosarcoma

Question 12

• Skeletal muscle

Answer 12

– Benign - rhabdomyoma
– Malignant - rhabdomyosarcoma

Question 13

• Nerve

Answer 13

• Benign –neurofibroma, schwannoma,
  neuroma
• Malignant –neurofibrosarcoma, malignant
  peripheral nerve sheath tumor, malignant
  schwannoma

Question 14

• Cartilage

Answer 14

– Benign - chondroma
– Malignant –chondrosarcoma

Question 15

• Blood vessels

Answer 15

– Benign - hemangioma
– Malignant –hemangiosarcoma or
angiosarcoma

Question 16

• Lymphatic vessels

Answer 16

– Benign - lymphangioma
– Malignant –lymphangiosarcoma

Question 17

Eponyms - Examples of Non-Standard Tumor
Nomenclature
* Hodgkin lymphoma / Hodgkin disease –
* Wilm’s tumor –
* Ewing sarcoma –

Answer 17

tumor of lymphocytes
primitive tumor of kidney
primitive tumor of bone

Question 18

Irregulars - Tumors that Sound Benign but are
Malignant
* Melanoma -

Answer 18

melanocytes

Question 19

Irregulars - Tumors that Sound Benign but are
Malignant
* Lymphoma -

Answer 19

lymphocytes

Question 20

Irregulars - Tumors that Sound Benign but are
Malignant
* Multiple myeloma –

Answer 20

plasma cells

Question 21

Irregulars - Tumors that Sound Benign but are
Malignant
* Seminoma –

Answer 21

testicular tumor

Question 22

Irregulars - Tumors that Sound Benign but are
Malignant
* Hepatoma –

Answer 22

hepatocytes –hepatocellular carcinoma

Question 23

Irregulars - Tumors that Sound Benign but are
Malignant
* Retinoblastoma -

Answer 23

childhood

Question 24

Irregulars - Tumors that Sound Benign but are
Malignant
* Neuroblastoma –

Answer 24

childhood

Question 25

Irregulars - Tumors that Sound Benign but are
Malignant
* Leukemia -

Answer 25

hematopoietic elements in bone marrow that circulate in the blood