ch 10: tumor formation and cancer

Question 1

what are the characteristics of a benign tumor?

Answer 1

• grows slowly
• well defined capsule
• not invasive
• well differentiated
• do not metastasive

Question 2

what are the characteristics of a malignant tumor?

Answer 2

• opposite of benign
• grows quickly
• not encapsulated
• invasive
• poorly differentiated
• metastasis

Question 3

what is metastasis?

Answer 3

can spread distantly

Question 4

are benign or malignant tumors known as cancer?

Answer 4

malignant

Question 5

what is a malignant epithelial tumor called?

Answer 5

carcinoma

Question 6

what is a malignant epithelial tumor of the ductal or glandular tissue called?

Answer 6

adenocarcinoma

Question 7

what is a malignant connective tissue tumor called?

Answer 7

sarcomas

Question 8

what is a malignant connective tissue tumor in the skeletal muscle called?

Answer 8

rhabdomyosarcomas

Question 9

what is a malignant lymphatic tumor called?

Answer 9

lymphomas

Question 10

what is a malignant blood-forming cell tumor called?

Answer 10

leukemias

Question 11

what is a carcinoma in situ (CIS)? what are its 3 fates?

Answer 11

• preinvasive epithelial malignant tumor of glandular or epithelial origin that have not yet broken through the basement membrane or invaded the surrounding stroma (connective tissue)
• remain stable
• progress to invasive or metastasis tumors
• regress and disappear

Question 12

what is anaplasia?

Answer 12

lack of differentiation in cancerous cells

Question 13

what is pleomorphic?

Answer 13

anaplastic cells are variable in size and shape