The usual presentation is that of an asymptomatic thyroid nodule, although many cases are now diagnosed during routine screening of affected kindreds with multiple endocrine neoplasia type IIA or IIB before a palpable tumor develops.

• 通常表现为无症状甲状腺结节，虽然很多病例在肿瘤扪及前就可通过多内分泌肿瘤IIA或IIB血缘关系的常规检查得到确诊。