The tumors are frequently multicentric, and a thyroid scan does not always reflect areas of involvement.
肿瘤呈多中心,甲状腺扫描并不总能显示病变部位.
The most common form in dogs is multicentric, involving the lymph nodes.
犬类中最常见的情况是多病灶, 并影响到淋巴结.
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