위장의 육안조직검사 (Stomach grossing)

Anatomic subsites of stomach

Esophagogastric junction (Gastroesophageal junction)

Cardia

Fundus

Corpus (Body)

Angular notch

Antrum

Pylorus

Pyloric sphincter

 

Anterior wall

Posterior wall

 

Lesser curvature

Greater curvature

 

Layers of stomach (T stage)

Mucosa (Tis)

   Lamina propria (T1a)

   Muscularis mucosae (T1a)

Submucosa (T1b)

Musclaris propria (T2)

Subserosa (subserosal connective tissue) (T3)

Serosa (visceral peritoneum) (T4a)

Tumor invades adjacent structures / organs (T4b)

 

 Early Gastric Cancer (EGC)

Type 0-I : Protruding type

Type 0-IIa : Superficial elevated type

Type 0-IIb : Flat type

Type 0-IIc : Superficial depressed type

Type 0-III : Excavated type

 

Advanced Gastric Cancer (AGC)

Type 1 : Protruding type

Type 2 : Ulcerative and localized type

Type 3 : Ulcerative and infiltrative type

Type 4 : Diffusely infiltrative type

 

위식도접합부의 종양

종양이 esophagogastric junction을 침범하고, 종양 중심(tumor epicenter)이 esophagogastric junction에서 2cm 이내에 위치한 경우 식도암(Esophageal cancer)으로 분류한다.

 

Lymph node dissection

안정적인 암병기 설정을 위해 최소 15~16개 이상 LN가 필요하다.