又称良性间叶黑素瘤 benign mesenchy-momelanoma
良性者称为间叶瘤 benign mesenchymoma
又称良性间叶黑色素瘤 benign mesenchymal melanoma
良性间叶瘤少见，至少由两种间叶组织混合构成，分良性和恶性。
Mesenchymomas are very rare tumors and contain at least two mesenchymal cellular elements not commonly associated Mesenechymomas may be either benign or malignant.
肝脏间叶性错构瘤是一种良性病变，可能是肝门结缔组织的发育异常。而不是肿瘤病变的过程。
HMH is a benign tumor of the liver that likely represents a developmental anomaly of the portal connective tissue rather than a neoplastic process.
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