The tumors usually arise in the abdomen but can also grow in the pelvis, likely from sacral extensions of the sympathetic chain.
通常生长于腹部，但也可发生在骨盆部，例如骶部的交感神经链。
The tumors usually arise in the abdomen but can also grow in the pelvis, likely from sacral extensions of the sympathetic chain.
通常生长于腹部，但也可发生在骨盆部，例如骶部的交感神经链。
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