New Flashcards
(17 cards)
Chronic peptic ulcers are most often associated with ______ infection or ______ use.
H-pylori infection or NSAID use
The most common sites for chronic peptic ulcers are ______ and ______.
The gastric antrum and first portion of the duodenum
The four histological layers of chronic peptic ulcers are: (1) ______, (2) ______, (3) ______, (4) ______.
Necrotic debris, Nonspecific acute inflammatory cells, Granulation tissue, Fibrosis
Zollinger-Ellison syndrome is a tumor known as ______ and leads to excessive secretion of ______, causing multiple ulcers in the stomach, duodenum, and even jejunum.
Gastrinoma, Gastrin
The most frequent complication of chronic peptic ulcers, occurring in 15% to 20% of patients, is ______.
Bleeding
Perforation occurs in 5% of cases, causing the escape of gut contents into the ______ cavity, leading to ______.
Peritoneal, acute peritonitis
Healing of chronic peptic ulcers can cause ______, such as pyloric obstruction.
Contraction of fibrous scar
Malignant transformation occurs in less than ______% in gastric ulcers and never occurs in ______ ulcers.
1%, duodenal
Benign gastric tumors include polyps, leiomyomas, lipomas, and ______.
Adenomatous polyps
Adenomatous polyps are true benign neoplasms that may turn into ______, particularly if dysplasia is exhibited on biopsy.
Carcinomas
The most common risk factors for gastric carcinoma include ______, ______, and ______.
High intake of alcohol and smoking, Nitrate or nitrite in the food, Epstein–Barr virus (EBV)
Gross features of gastric carcinoma include ______, ______, and ______.
Exophytic (large fungating mass), Ulcerative (nodular, irregular border), Diffuse infiltrating (leather bottle or linitis plastica)
In the Laurén classification, the intestinal type of gastric carcinoma shows ______ or ______ structure.
Tubular or Glandular
The diffuse type of gastric carcinoma shows ______ appearance, with tumor cells accumulating intracellular mucin and pushing the nucleus to the periphery.
Signet ring cell
Gastric cancer can spread through local spread to adjacent structures such as ______ and ______.
Pancreas, duodenum
Gastric lymphoma, which makes up 5% of all gastric malignancies, has a better ______.
Prognosis