Small and Large Bowel IV

Question 1

What is the morphology for appendiceal carcinoma?

Answer 1

Tumors larger than 2 cm
Low grade neuroendocrine tumors
Mucinous differentiation

Question 2

What type of appendiceal carcinoma is rarely encountered but actually are very bad mucinous tumors

Answer 2

Signent ring adenocarcinoma

Question 3

What is the gross morphology of Pseudomyxoma peritonei? Microscopic?

Answer 3

Grossly: abundant mucinous material on peritoneal surface
Microscopically: acellular, with pools of mucin and very low, atypical cellularity or high cellularity

Question 4

What is defined as ectasia from the venous plexus of the rectum due to increased pressure?

Answer 4

Hemorrhoids

Question 5

What is defined as a linear separation of tissues in anal canal extending through mucosa?

Answer 5

Anal fissure

Question 6

What is defined as a tract that may lead to the skin orblindly ending in perianal soft tissue?

Answer 6

Anal fistula

Question 7

What is defined as an intussusception of the rectum through the anus?

Answer 7

Rectal prolapse

Question 8

What is Condyloma accuminatum?

Answer 8

Anogenital wart, HPV associated

Question 9

What is defined as a premalignant squamous dysplasia of the anal canal?

Answer 9

Anal intraepithelial carcinoma

Question 10

What is the most common anal carcinoma?

Answer 10

Squamous cell carcinoma

Question 11

What is the biggest risk factor for anal carcinoma?

Answer 11

HPV