单纯癌又称实体癌、实性癌，是腺癌的一种，属于上皮组织恶性肿瘤。
2）实性癌（solid carcinoma）或单纯癌（carcinoma simplex）：低分化腺癌， 癌细胞不构成腺体，形成实性团块或条索状癌巢，异型性明显。若癌巢小而少， 间质多，称为硬癌。
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浸润性导管癌发病率最高，占44.9%，其次为单纯癌，占34.3%。
Infiltrating duct cancer was a high incidence (44.9%) and the secondary was simple cancer (34.3%).
观察组在放疗的同时采取早期康复训练，对照组单纯接受鼻咽癌放射治疗。
Observation group were subjected to early rehabilitation training besides radiotherapy, while control group only received radiotherapy.
目的比较食管癌放射治疗加化疗与单纯放射治疗的近期疗效和生存率。
Objective To compare the survival rate and short-term results between radiotherapy combined with chemotherapy and radiotherapy alone in treatment of esophageal cancer.
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