Occult thyroid papillary carcinomas often present as a solid mass in the lateral neck, with only a few cases revealing a branchial cleft cyst as the initial manifestation.

• 潜隐性甲状乳突癌转移常以侧颈部实心肿块表现，仅有很少的病例以鳃裂囊肿特徵为初期症状。