良性间叶瘤(Benign Mesenchymoma)系来自多功能性间叶组织的肿瘤,由分化好而成熟的多种间胚叶成分构成,可含有脂肪组织、软骨、骨、肌肉、血管等成分中的两种或两种以上。良性间叶瘤可发生于身体各部位的软组织,如舌、泌尿系统、乳腺、肺、胸膜、颈部等,发生于口腔颌面部的良性间叶瘤比较 Benign Mesenchymoma is a tumor derived from multi-functional mesenchymal tissue. It consists of well-differentiated and mature multi-mesenchymal components that can contain two components of adipose tissue, cartilage, bone, muscle, and blood vessels. Or two or more. Benign mesothelioma can occur in soft tissues in various parts of the body, such as the tongue, urinary system, breast, lung, pleura, neck, etc., compared with benign mesothelioma in oral and maxillofacial regions.