IA Tumour pathology 1 % + Flashcards Preview

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Flashcards in IA Tumour pathology 1 % + Deck (18)
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1

Sarcoma vs carcinoma

Carcinoma

  • Epithelial

Sarcomas

  • bone,
  • muscle,
  • connective tissue
  • cartilage
  • fat. 

2

Define tumour

•A tumour/neoplasm is an abnormal growing mass of tissue

•growth is uncoordinated with that of surrounding normal tissue

•growth continues after the removal of any stimulus that initated it

irreversible change

3

Define Cancer 

 A malignant tumour which:

  •  invades into adjacent tissue
  •  metastasise (spread) & grows at other sites within the body

4

Common types of cancers in males

  1. Prostate
  2. Lung
  3. Colon
  4. Kidney 
  5. Melanoma

5

Common types of cancers in females

  1. Breast
  2. Lung
  3. Colon
  4. Uterus
  5. Melanoma

6

Common types of cancers in humans and survival rates

  1. Breast ⇒85%
  2. Lung⇒ 10%
  3. Prostate⇒ 85%
  4. Colon ⇒60%
  5. Melanoma ⇒ 90%

7

How are tumours classified

•Based on tissue of origin e.g Lymphoid tissue

Benign v malignant

8

what are the tumours in glandular epithelium known as?

Benign: Adenoma 

Malignant: Adeno-Carcinoma

9

what are the tumours in epithelial Squamous known as? 

Benign: Squamous papilloma 

Malignant: Squamous carcinoma

10

Bone

Benign: Osteoma

Malignant: Osteo-sarcoma

11

Fat

Benign: Lipoma 

Malignant: Lipo-sarcoma

12

Fibrous

Benign: Fibroma 

Malignant: Fibro-sarcoma

 

13

WBC

Benign: N/A

Malignant: Leukaemia

14

Lymphoid tissue

Benign: N/A

Malignant: Lymphoma

15

Melanocytes

Benign: Naevus

Malignant: Melanoma

16

Neural tissue

CNS: Astrocytoma

PNS: Schwannoma

17

Germ cell tumours

Teratomas

•Develop in ovary/testis

•Ovarian teratomas usually benign

Testicular teratomas usually malignant

18

8 Distinguishing features Of Benign And Malignant Tumours 2

  1. Growth pattern: Malignant invasive, Benign is non-invasive
  2. Presence of capsule: Malignant none, Benign encapsulated
  3. Invasion: Malginant are invasive, Benign not
  4. Presence of metastases: Malignant yes, Benign no
  5. Differentiation: Malignant are poorly differentiated, Benign well differentiated 

  6. Appearance of tumour cells

  7. Function: Benign function similarly, Malignant leads to loss of normal fuction

  8. Behaviour: Malignant frequently causes death, Benign rarely