Colon Cancer

Question 1

Region in the colon () 2 major As that supply colon

Answer 1

Watershed

Question 2

Sites of watershed

Answer 2

1) splenic flexure → Griffith point
2) recto-segmoid → sudeck

Question 3

Rectum drain into

Answer 3

Sup rectal v.

Question 4

IMF termination

Answer 4

Fuse with splenic vein = SMV = portal V.

Question 5

Sup rectal branch of

Answer 5

Inf mesentric A

Question 6

Middle & inferior rectal branch of

Answer 6

Internal iliac A

Question 7

Precancerous lesion, of colon cancer

Answer 7

→ solitary Villous adenoma
→ polyps
→ UC

Question 8

Colon is more hazardous than SI (surgery)

Answer 8

’) high bacterial content
2) solid content
3) gaseous distension
4) poor blood supply
5) thinner wall
6) incomplete peritoneal covering

Question 9

Familial colon cancer

Answer 9

1) familial adenomatous polyposis [fap]
2) hereditary non-polyposis cc

Question 10

Method of screening in colon cancer

Answer 10

Fecal occult blood testing
Sigmoidoscopy
Colonoscopy
Barium enema
Genetic

Question 11

Macroscopic varieties of colon cancer

Answer 11

Annular
Tubular
Ulcer
Cauliflower

Question 12

Grade …… Tumor have least glandular structure + highest mitosis

Answer 12

G3

Question 13

Colon cancer invasion to to Douglas pouch

Answer 13

Rectal shelf of Blummer

Question 14

Cancer right colon symptoms

Answer 14

AAA
Anorexia
Asthenia
Anemia

Question 15

Cancer left colon symptoms

Answer 15

Attacks of constipation followed by false diarrhea
Bleeding per rectum
Mass in LIF → fecal impaction

Question 16

The gold standard for diagnosis of colorectal cancer

Answer 16

Colonscopy & biopsy

Question 17

In annular lesion in colon C. Barium enema show

Answer 17

Apple core appearance

Question 18

In polypoidal lesion in colon C. Barium enema show

Answer 18

. Filling defects