week7

Question 1

• 2nd leading cause of death in the US
• not well understood
• neoplasia means “new growth”
• neo; new
• plasia; growth

Answer 1

cancer

Question 2

• small but should not be present at all
• abnormal mass of tissue that exhibits an uncoordinated and excessive growth
• doesn’t respond to normal cell controls
• acts as a parasite that competes with normal cell growth

Answer 2

neoplasm; tumor

Question 3

study of neoplasms

Answer 3

oncology

Question 4

abnormal growth

-can be either benign or malignant

Answer 4

neoplasia

Question 5

• all neoplasms are composed of two portions; transformed tumor cells and supporting connective tissue
• tumors have a blood supply within their connective tissue
• outgrowths of body tissue but don’t adhere to growth regulation mechanisms
• can originate from epithelial tissue, connective tissue, muscle tissue or nervous tissue.

Answer 5

tissue origins of tumors

Question 6

• not recurrent or progressive
• nonmalignant
• remain localized
• don’t recur after surgical removal
• doesn’t cause extensive tissue damage or whole body damage
• resemble surrounding tissues
• can be fatal depending on size but generally are not
• grow buy expansion

Answer 6

benign tumor overview

Question 7

• benign tumors usually end with OMA

- suffix is attached to the tissue from which the tumor originates

Answer 7

naming benign tumors

Question 8

slow growing benign neoplasms of epithelial origin

• typically originate from pituitary gland
• cause loss of menstruation and infertitily in females
• cause underdevelopment of testicles, decreased sex drive and impotence in men
• secrete excess growth hormone can cause gigantism in children and acromegaly in adults
• adrenal glands cause Cushing disease

Answer 8

adenomas

Question 9

• wart like caused by HPV
• can cause abnormal tissue changes on feet, hands, vocal cords, face and genitals
• cause condylomas (warts) and dysplasia (pre cancer)

Answer 9

papillomas

Question 10

• found on the lining of the intestinal tract, trachea, esophagus, stomach, small intestine, and colon
• often require removal
• precancerous

Answer 10

polyps

Question 11

benign tumors of epithelial tissues (3)

Answer 11

1. adenomas
2. papillomas
3. polyps

Question 12

benign tumors of connective tissue (7)

Answer 12

1. osteoma
2. chondroma
3. lipoma
4. fibroma
5. angioma
6. hemangioma
7. lymphangioma

Question 13

originate in or consist of bone tissue

• found mostly on the bones of the face and skull but can develop anywhere
• usually no symptoms and dont require treatment

Answer 13

osteoma

Question 14

rare tumor that tends to arise at the base of the skull near the pituitary gland

• slow growing and may be asymptomatic for a long time
• usually accessible and has well defined margins so removal is common

Answer 14

chondroma

Question 15

composed of fat cells and can occur anywhere in fat tissue

-may be associated with nerve paralysis, bone deformity, and carpal tunnel

Answer 15

lipoma

Question 16

composed of fibrous tissue

-ossifyinhg fibromas are firm and gritty

Answer 16

fibroma

Question 17

consists of vessels

• can be anywhere on body
• usually only treated for cosmetic reasons

Answer 17

angioma

Question 18

benign tumor of blood vessels

Answer 18

hemangioma

Question 19

benign tumor of lymph vessels

Answer 19

lymphangioma

Question 20

benign tumors of muscle tissues (3)

Answer 20

1. rhabdomyoma
2. leiomyoma
3. neuroma

Question 21

result of excessive growth of muscle elements within the muscular walls of the heart

• most common primary cardiac tumor in fetuses, neonates, and young children
• commonly associated with tuberous sclerosis;

Answer 21

rhabdomyoma

Question 22

a genetic disease that can cause death, seizures and mental disability

Answer 22

tuberous sclerosis

Question 23

arises from smooth muscle

Answer 23

leiomyoma

Question 24

tumor of nervous tissue

-can cause severe pressure on the brainstem and cerebellum and can cause death though its rare

Answer 24

neuroma