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(共23张PPT)
第八章 消化系统疾病
Alimentary system
消 化 道 肿 瘤
食管癌 Carcinoma of esophagus
发生与地理差异有关
鳞癌和腺癌
腺癌多源于化生
Inf. Thyroid Arts.
R. Bronch. Art.
Thoracic. Aor.
Left Gastric Art.
Variations:
Inf, Phrenic
Celiac
Splenic
Short Gast.
中段 50% ，下段 30% ， 上段 20%
早期食道癌
癌组织局限于粘膜层或粘膜下层，未侵犯肌层，
无淋巴结转移
中晚期食道癌
病变肉眼可见
患者表现声嘶，进行性吞咽困难
鳞癌 squamous cell carcinoma：
溃疡型 ulcerated mid-esophageal
腔狭窄 lumenal stenosis.
Normal esophageal wall
Squamous cell carcinoma
Squamous cell carcinoma
Dysplasia precedes the lesion
An 60-year-old man had clinical symptoms of swallowing difficulty in progress. Look at the esophageal surgery sample photo and give the diagnoses:
中分化腺癌
This patient had a 30 year history of poorly controlled gastroesophageal reflux disease
Stages of esophagus carcinoma
胃癌 Gastric carcinoma
流行病学
Japan
Steady decline
Discouraging 5-year survival rate
形态类型
Intestinal
Diffuse
好发部位 Favored location
幽门区，小弯侧 Lesser curvative of the antropyloric region
大弯侧溃疡恶性多见。An ulcerative lesion on the greater curvature is more likely to be malignant

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