结果发现，在下颌区域，颌外动脉、颌内动脉、颌外静脉和颌内静脉形成闭合的循环回路。
The results revealed a closed return circuit composed of arteriae maxillaries externa, arteriae maxillris interna, vein maxillaris externa and vein maxillaris interna in mandibular region.
目的：总结平阳霉素(PYM)病变内注射治疗小儿颌面部静脉-微静脉畸形的疗效。
PURPOSE: To evaluate the effect of intralesional injection of Pingyangmycin (PYM) for treatment of venous-venular malformation in the maxillofacial regions of children.
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