Gastric Cancer and GISTs Quiz

Which of the following is a NOT known environmental risk factor for gastric cancer?

• Nitrates

• Helicobacter pylori infection

• Low salt diet

• Well water

The Lauren classification of gastric cancer divides it into which two main types?

• Well-differentiated and poorly-differentiated

• Intestinal and diffuse

• Squamous cell and adenocarcinoma

• Primary and secondary

In the Japanese classification of early gastric cancer (EGC), what defines a "mucosal" lesion?

• Invasion into the submucosa

• Invasion into the muscularis propria

• Invasion confined to the mucosa without submucosal involvement

• Metastasis to regional lymph nodes

What Is D2 gastrectomy?

• Gastrectomy with 1-6 station lymph node resection

• Gastrectomy with 1-12 station lymph node resection

• Gastrectomy with 6-12 station lymph node resection

• Gastrectomy with 1-16 station lymph node resection

What is Early gastric cancer-

• Tumor upto T2

• Tumour upto T1b

• any Tumour without lymph node involvement

• Tumor upto subserosa

Which of the following is a common endoscopic treatment for early gastric cancer confined to mucosa?

• Radiofrequency ablation

• Endoscopic mucosal resection (EMR)

• Laser

• Cryotherapy

Radical surgery for proximal gastric cancer commonly involves which of the following procedures?

• Partial gastrectomy

• Total gastrectomy with lymphadenectomy

• Total gastrectomy

• Hemigastrectomy

Which genetic mutation is most commonly associated with GISTs?

• KRAS

• TP53

• CD117 (KIT)

• BRAF

What is the primary treatment for localized GISTs?

• Chemotherapy

• Radiation therapy

• Surgical resection

• Targeted therapy

Which of the following is most common site for GISTs in the gastrointestinal tract?

• Stomach

• oesophagus

• Duodenum

• Colon