Flashcards in GI tumors and polyps - STEP and Pathomoa and class Deck (5)
What is the difference: Sessile vs. pedunculated polyp
• Sessile will be less of a bump with a stalk
• It's more of a bump right on the surface
• Pedunculated is more diverticular and it has a stalk
• Sessile is more tubular in architecture, while peduncular is more villous
What is the difference: Adenoma vs. Adenocarcinoma vs. carcinoma
when it has carcinoma in the name, it's invasive. Adenoma is pre-cursor to carcinoma. Adenocarcinoma is a glandular tissue tumor (look for the gland hyperplasia)
What are the three types of non-neoplastic polyps?
What are inflammatory polyps?
• Often present with bleeding
• Often due to mucosal prolapse
○ Especially common in the rectum
• Cycles of injury and healing will result in inflammation, ulceration/erosion, epithelial hyperplasia and POLYP formation