该疾病包括各种长在头部和颈部组织和器官各种类型的肿瘤，如长在唾液腺和粘液上。
The disease includes a range of tumour types occurring in the tissues and organs in the head and neck, for example salivary glands and mucus membranes.
粘液瘤一种良性肿瘤，最常见于心脏，它由黏液里的胶状结缔组织构成。
A benign tumor most often found in the heart that is composed of connective tissue embedded in mucus.
图左边示正常食管鳞状上皮黏膜，黏膜下层内粘液腺体，以及由淋巴组织包围的腺体导管。图右侧示食管肌层。
This is normal esophageal squamous mucosa at the left, with underlying submucosa containing mucus glands and a duct surrounded by lymphoid tissue. The muscularis is at the right.
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